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The CPT® Code 84295 refers to the measurement of sodium levels in serum, plasma, or whole blood. This procedure involves obtaining a blood sample to assess the concentration of sodium, which is a crucial positively charged electrolyte in the body. Sodium plays a vital role in various physiological functions, including the regulation of fluid balance, maintenance of acid-base equilibrium, and support of normal metabolic processes. It works in conjunction with other electrolytes, such as potassium, chloride, and carbon dioxide (CO2), to ensure proper cellular function and overall homeostasis. The measurement of sodium levels is essential for screening and monitoring conditions such as hypernatremia, which is characterized by elevated sodium levels, and hyponatremia, which indicates low sodium levels. Additionally, sodium levels may be monitored in patients who are on specific medications, particularly diuretics, as these can lead to significant electrolyte imbalances. The sodium measurement is typically performed using ion-selective electrode (ISE) methodology, which provides accurate and reliable results for clinical assessment.
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The measurement of sodium levels in serum, plasma, or whole blood is indicated for various clinical scenarios, including:
The procedure for measuring sodium levels involves several key steps, which are outlined as follows:
After the sodium measurement procedure, there are generally no specific post-procedure care requirements for the patient. However, healthcare providers may advise patients to follow up with their physician to discuss the results and any further necessary evaluations or treatments. It is important for patients to be aware of any symptoms related to abnormal sodium levels, such as confusion, muscle weakness, or changes in fluid balance, and to report these to their healthcare provider. Regular monitoring may be recommended for patients with known electrolyte imbalances or those on medications affecting sodium levels.
| Short Descr | ASSAY OF SERUM SODIUM | Medium Descr | SODIUM SERUM PLASMA OR WHOLE BLOOD | Long Descr | Sodium; serum, plasma or whole blood | 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) | Yes | APC Status Indicator | Conditionally packaged laboratory tests | Type of Service (TOS) | 5 - Diagnostic Laboratory | Berenson-Eggers TOS (BETOS) | T1H - Lab tests - other (non-Medicare fee schedule) | MUE | 1 | CCS Clinical Classification | 233 - Laboratory - Chemistry and Hematology |
| QW | Clia waived test | Q1 | Routine clinical service provided in a clinical research study that is in an approved clinical research study | 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. | 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. | AY | Item or service furnished to an esrd patient that is not for the treatment of esrd | GW | Service not related to the hospice patient's terminal condition | 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. | 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. | GZ | Item or service expected to be denied as not reasonable and necessary | GA | Waiver of liability statement issued as required by payer policy, individual case | Q4 | Service for ordering/referring physician qualifies as a service exemption | 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. | GC | This service has been performed in part by a resident under the direction of a teaching physician | GV | Attending physician not employed or paid under arrangement by the patient's hospice provider | 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 | 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 | Q3 | Live kidney donor surgery and related services | 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 | XE | Separate encounter, a service that is distinct because it occurred during a separate encounter | XU | Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service |
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| 2009-01-01 | Changed | Code description changed |
| Pre-1990 | Added | Code added. |
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