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Try CasePilotCPT® 36415 is the standard billing code used to report the routine collection of venous blood by venipuncture. In simple terms, this code covers the standard procedure of drawing blood from a vein with a needle (such as in the arm) for laboratory testing or other medical purposes.
It is commonly used in physician offices, clinics, laboratories, and outpatient hospital settings whenever a blood sample is drawn for diagnostic tests or screenings.
Venipuncture is one of the most routine but important procedures in medical care. Clinically, obtaining a blood specimen via CPT 36415 is essential for performing blood tests that aid in diagnosing conditions, monitoring health status (e.g. cholesterol, blood sugar), and guiding treatment decisions.
The procedure involves inserting a needle into a vein (often in the antecubital fossa or dorsal hand) to collect blood into a tube or syringe. It is typically performed by a nurse, phlebotomist, or trained technician.
Documentation Requirement: The medical record must document that a venipuncture was performed. Essential details include:
Use CPT 36415 whenever a venous blood draw is performed and it is not part of another procedure. It is billed by the entity that actually performs the draw—whether that is a physician’s office drawing to send to an outside lab, or an independent laboratory drawing from a patient. It covers the act of puncturing the vein, collecting the specimen, and preparing it for transport.
CPT 36415 is only billed once per patient encounter or date of service. This applies regardless of:
Medicare policy states: “Each unit of service of this code includes all collections of venous blood by venipuncture during a single episode of care”. An “episode of care” is defined as the time from patient arrival to departure. Billing more than one unit will result in a denial based on Medically Unlikely Edits (MUEs).
If a patient has two completely separate visits on the same day (e.g., a fasting draw at 8:00 AM, leaves the facility, and returns at 3:00 PM for a timed antibiotic level), a second unit may be allowed.
How to Bill: Append Modifier 59 or XU (Unusual Non-Overlapping Service) to the second CPT 36415 line item. Documentation must clearly support the distinct nature of the second encounter.
Critical Bundling Rule: Do not bill CPT 99211 (Nurse Visit) solely for the purpose of a blood draw. Medicare considers the clinical labor of the nurse (checking vitals, prepping patient, drawing blood) to be captured by the 36415 payment. Only bill 99211 if there is a medically necessary, separately identifiable evaluation (e.g., checking blood pressure for medication adjustment).
Medicare Part B (2025/2026): CPT 36415 is paid under the Clinical Laboratory Fee Schedule (CLFS).
Commercial & Medicaid: Rates vary significantly. Some state Medicaid programs may still pay in the $3.00 range. Commercial payers may pay rates similar to Medicare ($4–$10) or bundle the fee entirely into office visits.
Understanding the specific Claim Adjustment Reason Codes (CARC) helps in correcting errors:
| CARC Code | Reason | Action Plan |
|---|---|---|
| CO-97 | Inclusive/Bundled | Usually caused by billing 99211 + 36415. Write off the 99211 unless a separate E/M was documented (add Mod 25). |
| CO-18 | Duplicate Service | You billed >1 unit per day. Correct claim to 1 unit unless documentation proves distinct sessions (add Mod 59). |
| CO-50 | Medical Necessity | The diagnosis (ICD-10) does not support the lab. Example: Using Z00.00 (General Exam) for a specialized test. Update with specific symptom codes. |
| CO-5 | Place of Service | Billing 36415 with POS 22 (Hospital). Remove the code; the facility gets paid, not the physician. |
flowchart TD
Q1{Is the patient in a hospital?<br/>Inpatient or Outpatient}
Q1 -->|Yes| STOP[Do NOT bill 36415<br/>Bundled into facility fee]
Q1 -->|No| Q2{Is the patient in a<br/>SNF or Home Health?}
Q2 -->|Yes| G0471[Bill G0471<br/>Higher reimbursement $11.09]
Q2 -->|No| Q3{Is the payer Commercial?}
Q3 -->|Yes| CHECK[Check contract<br/>May be bundled if you also<br/>bill the lab test]
Q3 -->|No / Medicare| BILL[Bill 36415<br/>1 Unit at $9.09]
No. You must use CPT 36416. However, Medicare and most payers bundle 36416 and do not pay for it separately.
Yes. 36415 applies to patients of all ages for venous draws. There is no separate “pediatric” venipuncture code for routine draws.
Yes, but it is billed under the physician’s NPI. It does not reimburse at a higher rate than if a nurse or phlebotomist performed it.
Do not use 36415. Use 36591 (Port) or 36592 (PICC). Note that these are often bundled if any other service (like flushing the line) is performed on the same day.
© Copyright 2026 American Medical Association. All rights reserved.
The CPT® Code 36415 refers to the procedure of collecting venous blood through venipuncture, which is a common practice in medical settings for obtaining blood samples for various laboratory tests. During this procedure, a healthcare professional selects an appropriate vein, typically one of the larger antecubital veins such as the median cubital, basilic, or cephalic vein, which are preferred due to their accessibility and size. The process begins with the application of a tourniquet above the intended puncture site to engorge the vein, making it easier to locate and puncture. Following this, the site is disinfected using an alcohol pad to minimize the risk of infection. A sterile needle, which is attached to a hub, is then used to puncture the vein, allowing blood to flow into a collection device. A Vacutainer tube is connected to the hub to collect the blood specimen. Once the required amount of blood is drawn, the Vacutainer tube is removed. It is important to note that depending on the specific blood tests ordered, multiple Vacutainers may be filled from the same puncture site, ensuring that all necessary samples are collected efficiently. This procedure is essential for diagnostic purposes and is widely utilized in clinical practice.
© Copyright 2026 Coding Ahead. All rights reserved.
The procedure described by CPT® Code 36415 is indicated for the collection of venous blood samples for various diagnostic tests. The following conditions or situations may warrant the use of this procedure:
The procedure for CPT® Code 36415 involves several key steps to ensure safe and effective blood collection. Each step is crucial for the integrity of the blood sample and the comfort of the patient.
After the venipuncture procedure is completed, the healthcare professional will typically apply pressure to the puncture site with a cotton ball or gauze to stop any bleeding. A bandage may be placed over the site to protect it and keep it clean. Patients are usually advised to keep the bandage on for a few hours and to avoid heavy lifting or strenuous activities with the arm for the remainder of the day. Monitoring for any signs of complications, such as excessive bleeding, bruising, or infection at the puncture site, is also important. If any unusual symptoms occur, patients should be instructed to contact their healthcare provider.
| Short Descr | COLL VENOUS BLD VENIPUNCTURE | Medium Descr | COLLECTION VENOUS BLOOD VENIPUNCTURE | Long Descr | Collection of venous blood by venipuncture | Status Code | Statutory Exclusion (from MPFS, may be paid under other methodologies) | Global Days | XXX - Global Concept Does Not Apply | PC/TC Indicator (26, TC) | 9 - Not Applicable | Multiple Procedures (51) | 9 - Concept does not apply. | Bilateral Surgery (50) | 9 - Concept does not apply. | Physician Supervisions | 09 - Concept does not apply. | Assistant Surgeon (80, 82) | 9 - Concept does not apply. | Co-Surgeons (62) | 9 - Concept does not apply. | Team Surgery (66) | 9 - Concept does not apply. | Diagnostic Imaging Family | 99 - Concept Does Not Apply | CLIA Waived (QW) | No | APC Status Indicator | Conditionally packaged laboratory tests | Type of Service (TOS) | 5 - Diagnostic Laboratory | Berenson-Eggers TOS (BETOS) | T1A - Lab tests - routine venipuncture (non Medicare fee schedule) | MUE | 2 | CCS Clinical Classification | 231 - Other therapeutic procedures |
| 59 | Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25. | GW | Service not related to the hospice patient's terminal condition | GA | Waiver of liability statement issued as required by payer policy, individual case | CR | Catastrophe/disaster related | Q1 | Routine clinical service provided in a clinical research study that is in an approved clinical research study | X5 | Diagnostic services requested by another clinician: for reporting services by a clinician who furnishes care to the patient only as requested by another clinician or subsequent and related services requested by another clinician; this modifier is reported for patient relationships that may not be adequately captured by the above alternative categories; reporting clinician service examples include but are not limited to, the radiologist's interpretation of an imaging study requested by another clinician | XU | Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service | GV | Attending physician not employed or paid under arrangement by the patient's hospice provider | GC | This service has been performed in part by a resident under the direction of a teaching physician | X1 | Continuous/broad services: for reporting services by clinicians, who provide the principal care for a patient, with no planned endpoint of the relationship; services in this category represent comprehensive care, dealing with the entire scope of patient problems, either directly or in a care coordination role; reporting clinician service examples include, but are not limited to: primary care, and clinicians providing comprehensive care to patients in addition to specialty care | GY | Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit | 77 | Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service. | XE | Separate encounter, a service that is distinct because it occurred during a separate encounter | 90 | Reference (outside) laboratory: when laboratory procedures are performed by a party other than the treating or reporting physician or other qualified health care professional, the procedure may be identified by adding modifier 90 to the usual procedure number. | Q6 | Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area | XS | Separate structure, a service that is distinct because it was performed on a separate organ/structure | PO | Excepted service provided at an off-campus, outpatient, provider-based department of a hospital | GZ | Item or service expected to be denied as not reasonable and necessary | 91 | Repeat clinical diagnostic laboratory test: in the course of treatment of the patient, it may be necessary to repeat the same laboratory test on the same day to obtain subsequent (multiple) test results. under these circumstances, the laboratory test performed can be identified by its usual procedure number and the addition of modifier 91. note: this modifier may not be used when tests are rerun to confirm initial results; due to testing problems with specimens or equipment; or for any other reason when a normal, one-time, reportable result is all that is required. this modifier may not be used when other code(s) describe a series of test results (eg, glucose tolerance tests, evocative/suppression testing). this modifier may only be used for laboratory test(s) performed more than once on the same day on the same patient. | AQ | Physician providing a service in an unlisted health professional shortage area (hpsa) | 76 | Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service. | CC | Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed) | U1 | Medicaid level of care 1, as defined by each state | SA | Nurse practitioner rendering service in collaboration with a physician | LT | Left side (used to identify procedures performed on the left side of the body) | PD | Diagnostic or related non diagnostic item or service provided in a wholly owned or operated entity to a patient who is admitted as an inpatient within 3 days | PN | Non-excepted service provided at an off-campus, outpatient, provider-based department of a hospital | CG | Policy criteria applied | Q0 | Investigational clinical service provided in a clinical research study that is in an approved clinical research study | RT | Right side (used to identify procedures performed on the right side of the body) | X2 | Continuous/focused services: for reporting services by clinicians whose expertise is needed for the ongoing management of a chronic disease or a condition that needs to be managed and followed with no planned endpoint to the relationship; reporting clinician service examples include but are not limited to: a rheumatologist taking care of the patient's rheumatoid arthritis longitudinally but not providing general primary care services | 26 | Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number. | Q3 | Live kidney donor surgery and related services | 51 | Multiple procedures: when multiple procedures, other than e/m services, physical medicine and rehabilitation services or provision of supplies (eg, vaccines), are performed at the same session by the same individual, the primary procedure or service may be reported as listed. the additional procedure(s) or service(s) may be identified by appending modifier 51 to the additional procedure or service code(s). note: this modifier should not be appended to designated "add-on" codes (see appendix d). | 95 | Synchronous telemedicine service rendered via a real-time interactive audio and video telecommunications system: synchronous telemedicine service is defined as a real-time interaction between a physician or other qualified health care professional and a patient who is located at a distant site from the physician or other qualified health care professional. the totality of the communication of information exchanged between the physician or other qualified health care professional and the patient during the course of the synchronous telemedicine service must be of an amount and nature that would be sufficient to meet the key components and/or requirements of the same service when rendered via a face-to-face interaction. modifier 95 may only be appended to the services listed in appendix p. appendix p is the list of cpt codes for services that are typically performed face-to-face, but may be rendered via a real-time (synchronous) interactive audio and video telecommunications system. | AY | Item or service furnished to an esrd patient that is not for the treatment of esrd | KX | Requirements specified in the medical policy have been met | TR | School-based individualized education program (iep) services provided outside the public school district responsible for the student | U7 | Medicaid level of care 7, as defined by each state | UD | Medicaid level of care 13, as defined by each state | 22 | Increased procedural services: when the work required to provide a service is substantially greater than typically required, it may be identified by adding modifier 22 to the usual procedure code. documentation must support the substantial additional work and the reason for the additional work (ie, increased intensity, time, technical difficulty of procedure, severity of patient's condition, physical and mental effort required). note: this modifier should not be appended to an e/m service. | 25 | Significant, separately identifiable evaluation and management service by the same physician or other qualified health care professional on the same day of the procedure or other service: it may be necessary to indicate that on the day a procedure or service identified by a cpt code was performed, the patient's condition required a significant, separately identifiable e/m service above and beyond the other service provided or beyond the usual preoperative and postoperative care associated with the procedure that was performed. a significant, separately identifiable e/m service is defined or substantiated by documentation that satisfies the relevant criteria for the respective e/m service to be reported (see evaluation and management services guidelines for instructions on determining level of e/m service). the e/m service may be prompted by the symptom or condition for which the procedure and/or service was provided. as such, different diagnoses are not required for reporting of the e/m services on the same date. this circumstance may be reported by adding modifier 25 to the appropriate level of e/m service. note: this modifier is not used to report an e/m service that resulted in a decision to perform surgery. see modifier 57 for significant, separately identifiable non-e/m services, see modifier 59. | 32 | Mandated services: services related to mandated consultation and/or related services (eg, third party payer, governmental, legislative or regulatory requirement) may be identified by adding modifier 32 to the basic procedure. | 33 | Preventive services: when the primary purpose of the service is the delivery of an evidence based service in accordance with a us preventive services task force a or b rating in effect and other preventive services identified in preventive services mandates (legislative or regulatory), the service may be identified by adding 33 to the procedure. for separately reported services specifically identified as preventive, the modifier should not be used. | 52 | Reduced services: under certain circumstances a service or procedure is partially reduced or eliminated at the discretion of the physician or other qualified health care professional. under these circumstances the service provided can be identified by its usual procedure number and the addition of modifier 52, signifying that the service is reduced. this provides a means of reporting reduced services without disturbing the identification of the basic service. note: for hospital outpatient reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well-being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use). | 53 | Discontinued procedure: under certain circumstances, the physician or other qualified health care professional may elect to terminate a surgical or diagnostic procedure. due to extenuating circumstances or those that threaten the well being of the patient, it may be necessary to indicate that a surgical or diagnostic procedure was started but discontinued. this circumstance may be reported by adding modifier 53 to the code reported by the individual for the discontinued procedure. note: this modifier is not used to report the elective cancellation of a procedure prior to the patient's anesthesia induction and/or surgical preparation in the operating suite. for outpatient hospital/ambulatory surgery center (asc) reporting of a previously scheduled procedure/service that is partially reduced or cancelled as a result of extenuating circumstances or those that threaten the well being of the patient prior to or after administration of anesthesia, see modifiers 73 and 74 (see modifiers approved for asc hospital outpatient use). | 63 | Procedure performed on infants less than 4 kg: procedures performed on neonates and infants up to a present body weight of 4 kg may involve significantly increased complexity and physician or other qualified health care professional work commonly associated with these patients. this circumstance may be reported by adding modifier 63 to the procedure number. note: unless otherwise designated, this modifier may only be appended to procedures/services listed in the 20100-69990 code series and 92920, 92928, 92953, 92960, 92986, 92987, 92990, 92997, 92998, 93312, 93313, 93314, 93315, 93316, 93317, 93318, 93452, 93505, 93563, 93564, 93568, 93569, 93573, 93574, 93575, 93580, 93581, 93582, 93590, 93591, 93592, 93593, 93594, 93595, 93596, 93597, 93598, 93615, 93616 from the medicine/ cardiovascular section. modifier 63 should not be appended to any cpt codes listed in the evaluation and management services, anesthesia, radiology, pathology and laboratory, or medicine sections (other than those identified above from the medicine/cardiovascular section). | 79 | Unrelated procedure or service by the same physician or other qualified health care professional during the postoperative period: the individual may need to indicate that the performance of a procedure or service during the postoperative period was unrelated to the original procedure. this circumstance may be reported by using modifier 79. (for repeat procedures on the same day, see modifier 76.) | 92 | Alternative laboratory platform testing: when laboratory testing is being performed using a kit or transportable instrument that wholly or in part consists of a single use, disposable analytical chamber, the service may be identified by adding modifier 92 to the usual laboratory procedure code (hiv testing 86701-86703, and 87389). the test does not require permanent dedicated space, hence by its design may be hand carried or transported to the vicinity of the patient for immediate testing at that site, although location of the testing is not in itself determinative of the use of this modifier. | 93 | Synchronous telemedicine service rendered via telephone or other real-time interactive audio-only telecommunications system : synchronous telemedicine service is defined as a real-time interaction between a physician or other qualified health care professional and a patient who is located away at a distant site from the physician or other qualified health care professional. the totality of the communication of information exchanged between the physician or other qualified health care professional and the patient during the course of the synchronous telemedicine service must be of an amount and nature that is sufficient to meet the key components and/or requirements of the same service when rendered via a face-to-face interaction. | 96 | Habilitative services: when a service or procedure that may be either habilitative or rehabilitative in nature is provided for habilitative purposes, the physician or other qualified health care professional may add modifier 96 to the service or procedure code to indicate that the service or procedure provided was a habilitative service. habilitative services help an individual learn skills and functioning for daily living that the individual has not yet developed, and then keep and/or improve those learned skills. habilitative services also help an individual keep, learn, or improve skills and functioning for daily living. | AF | Specialty physician | AG | Primary physician | AJ | Clinical social worker | CA | Procedure payable only in the inpatient setting when performed emergently on an outpatient who expires prior to admission | CH | 0 percent impaired, limited or restricted | CM | At least 80 percent but less than 100 percent impaired, limited or restricted | CS | Cost-sharing waived for specified covid-19 testing-related services that result in and order for or administration of a covid-19 test and/or used for cost-sharing waived preventive services furnished via telehealth in rural health clinics and federally qualified health centers during the covid-19 public health emergency | E2 | Lower left, eyelid | EP | Service provided as part of medicaid early periodic screening diagnosis and treatment (epsdt) program | F1 | Left hand, second digit | FC | Partial credit received for replaced device | FP | Service provided as part of family planning program | FQ | The service was furnished using audio-only communication technology | FR | The supervising practitioner was present through two-way, audio/video communication technology | FS | Split (or shared) evaluation and management visit | GB | Claim being re-submitted for payment because it is no longer covered under a global payment demonstration | GE | This service has been performed by a resident without the presence of a teaching physician under the primary care exception | GF | Non-physician (e.g. nurse practitioner (np), certified registered nurse anesthetist (crna), certified registered nurse (crn), clinical nurse specialist (cns), physician assistant (pa)) services in a critical access hospital | GP | Services delivered under an outpatient physical therapy plan of care | GT | Via interactive audio and video telecommunication systems | GX | Notice of liability issued, voluntary under payer policy | HA | Child/adolescent program | HO | Masters degree level | JW | Drug amount discarded/not administered to any patient | JZ | Zero drug amount discarded/not administered to any patient | KV | Dmepos item subject to dmepos competitive bidding program that is furnished as part of a professional service | KW | Dmepos item subject to dmepos competitive bidding program number 4 | LR | Laboratory round trip | Q4 | Service for ordering/referring physician qualifies as a service exemption | Q5 | Service furnished under a reciprocal billing arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area | QJ | Services/items provided to a prisoner or patient in state or local custody, however the state or local government, as applicable, meets the requirements in 42 cfr 411.4 (b) | QW | Clia waived test | RA | Replacement of a dme, orthotic or prosthetic item | SB | Nurse midwife | SE | State and/or federally-funded programs/services | SK | Member of high risk population (use only with codes for immunization) | SM | Second surgical opinion | ST | Related to trauma or injury | U2 | Medicaid level of care 2, as defined by each state | U6 | Medicaid level of care 6, as defined by each state | UA | Medicaid level of care 10, as defined by each state | UH | Services provided in the evening | V5 | Vascular catheter (alone or with any other vascular access) | X3 | Episodic/broad services: for reporting services by clinicians who have broad responsibility for the comprehensive needs of the patient that is limited to a defined period and circumstance such as a hospitalization; reporting clinician service examples include but are not limited to the hospitalist's services rendered providing comprehensive and general care to a patient while admitted to the hospital | X4 | Episodic/focused services: for reporting services by clinicians who provide focused care on particular types of treatment limited to a defined period and circumstance; the patient has a problem, acute or chronic, that will be treated with surgery, radiation, or some other type of generally time-limited intervention; reporting clinician service examples include but are not limited to, the orthopedic surgeon performing a knee replacement and seeing the patient through the postoperative period | XP | Separate practitioner, a service that is distinct because it was performed by a different practitioner |
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Action
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Notes
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| 2025-01-01 | Changed | Short Description changed. |
| 2003-01-01 | Changed | Code description changed. |
| Pre-1990 | Added | Code added. |
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