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Official Description

Gonadotropin; luteinizing hormone (LH)

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 83002 refers to the testing of luteinizing hormone (LH), which is a type of gonadotropin. Gonadotropins are hormones produced by the pituitary gland that play a crucial role in the growth and functioning of the gonads, which are the sex organs responsible for reproduction. LH, along with follicle stimulating hormone (FSH), is essential for the development of eggs in females and sperm in males. These hormones are vital for the regulation of various reproductive processes and the development of secondary sexual characteristics, such as voice changes, muscle growth, hair distribution, and breast development. In females, LH and FSH work synergistically to stimulate the maturation of the graafian follicle and trigger ovulation. In males, LH is responsible for stimulating testosterone production, while FSH is involved in promoting sperm production. Testing for serum levels of LH and FSH is commonly performed to evaluate infertility issues in both men and women, investigate menstrual irregularities, diagnose disorders related to the pituitary gland, and assess conditions affecting the ovaries or testes. Additionally, these hormone levels can help diagnose cases of delayed or precocious puberty. The measurement of urine LH levels is particularly useful for detecting the surge in LH that occurs during ovulation. The testing for both serum FSH and LH levels is typically conducted using an electrochemiluminescent immunoassay, a sensitive and specific laboratory technique.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The testing for luteinizing hormone (LH) is indicated in various clinical scenarios, particularly related to reproductive health and hormonal balance. The following conditions may warrant the measurement of LH levels:

  • Infertility Evaluation Testing LH levels, along with follicle stimulating hormone (FSH) levels, is essential in the workup of infertility in both men and women to assess reproductive function.
  • Menstrual Irregularities LH testing is utilized to investigate irregular menstrual cycles, which may indicate underlying hormonal imbalances or reproductive disorders.
  • Pituitary Gland Disorders Measurement of LH can help diagnose disorders of the pituitary gland, which may affect hormone production and regulation.
  • Ovarian or Testicular Diseases LH levels are assessed to evaluate conditions affecting the ovaries in females or the testes in males, aiding in the diagnosis of various reproductive health issues.
  • Delayed or Precocious Puberty LH testing is used to diagnose cases of delayed puberty in adolescents or precocious puberty, where sexual development occurs earlier than expected.

2. Procedure

The procedure for testing luteinizing hormone (LH) involves several key steps to ensure accurate measurement of hormone levels. The following outlines the procedural steps:

  • Step 1: Sample Collection A blood or urine sample is collected from the patient. For serum testing, venipuncture is performed to obtain a blood sample, while urine testing may involve a simple collection of a midstream urine sample.
  • Step 2: Laboratory Processing The collected sample is sent to a laboratory where it undergoes processing. For serum samples, the blood is centrifuged to separate the serum from the cellular components.
  • Step 3: Testing Methodology The serum or urine sample is analyzed using an electrochemiluminescent immunoassay, a highly sensitive and specific method that detects the presence and concentration of LH in the sample.
  • Step 4: Result Interpretation The laboratory generates a report detailing the LH levels found in the sample. These results are then interpreted in conjunction with other clinical findings and tests to provide a comprehensive assessment of the patient's hormonal status.

3. Post-Procedure

After the LH testing procedure, there are generally no specific post-procedure care requirements for patients. However, it is important for healthcare providers to communicate the results to the patient and discuss any necessary follow-up actions based on the findings. Patients may be advised to continue monitoring their symptoms or undergo additional testing if indicated. In cases where LH levels are abnormal, further evaluation may be warranted to determine the underlying cause and appropriate treatment options. Overall, the recovery from the procedure is immediate, and patients can resume their normal activities without any restrictions.

Short Descr ASSAY OF GONADOTROPIN (LH)
Medium Descr GONADOTROPIN LUTEINIZING HORMONE
Long Descr Gonadotropin; luteinizing hormone (LH)
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
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.
QW Clia waived test
Q4 Service for ordering/referring physician qualifies as a service exemption
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
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.
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.
GW Service not related to the hospice patient's terminal condition
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
CC Procedure code change (use 'cc' when the procedure code submitted was changed either for administrative reasons or because an incorrect code was filed)
CR Catastrophe/disaster related
GA Waiver of liability statement issued as required by payer policy, individual case
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GZ Item or service expected to be denied as not reasonable and necessary
KX Requirements specified in the medical policy have been met
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
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)
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
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
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2013-01-01 Changed Short Descriptor changed.
Pre-1990 Added Code added.
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