Summary & Overview

CPT 83727: Luteinizing Releasing Hormone (LRH) Assay

CPT code 83727 represents a laboratory assay measuring luteinizing releasing factor (LRH), a hypothalamic hormone that regulates gonadotrophin release and plays a key role in pubertal development. Nationally, accurate hormone assays support diagnostic evaluation of reproductive and endocrine disorders in pediatric and adult populations, informing management of delayed or precocious puberty, infertility workups, and endocrine dysfunction.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The summary addresses clinical context, coding placement within laboratory services, and payer coverage considerations relevant across the U.S.

Readers will learn the clinical purpose of the assay, typical sites of service where the test is performed, and the primary payer landscape. The publication provides benchmarks and operational context for billing and claims processing where available, highlights common modifiers used in laboratory billing, and outlines policy and coverage themes affecting reimbursement and medical necessity determinations. Data not available in the input is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare83727CPThormone assayendocrinologylaboratoryLRHpubertydiagnostic testing

Billing Code Overview

CPT code 83727 describes a laboratory assay performed by a lab analyst to measure the amount of luteinizing releasing factor (LRH) in a patient specimen. LRH is produced by the hypothalamus and regulates secretion of gonadotrophin hormones; it is most active during puberty.

Service type: Hormone assay / endocrine laboratory testing
Typical site of service: Clinical laboratory or hospital laboratory service

Data not available in the input for associated taxonomies, ICD-10 diagnoses, and related codes.

Clinical & Coding Specifications

Clinical Context

A typical patient is an adolescent or young adult referred to endocrinology for evaluation of delayed or precocious puberty, amenorrhea, infertility, or suspected hypothalamic-pituitary-gonadal axis dysregulation. The clinician orders measurement of luteinizing releasing hormone (LRH, also called luteinizing hormone–releasing hormone or LHRH) in a serum or plasma specimen to assess hypothalamic stimulation of pituitary gonadotropin secretion.

Workflow:

Patient presents for endocrine evaluation with symptoms such as lack of pubertal development, early secondary sexual characteristics, irregular menses, or infertility concerns.
Provider documents history, physical exam, and indications (e.g., delayed puberty, amenorrhea). A laboratory order for 83727 is placed for LRH measurement.
Specimen collection: blood draw is performed at the outpatient laboratory, hospital clinical lab, or specialty fertility clinic; specimen handling follows assay-specific requirements (timing, chilled transport, or preservative as indicated by the performing lab).
Laboratory processing: the clinical laboratory analyst performs the assay and reports quantitative LRH level to the ordering clinician. The result is interpreted alongside luteinizing hormone (LH), follicle-stimulating hormone (FSH), estradiol or testosterone, and clinical findings.
Clinical use: LRH results contribute to diagnosing central (hypothalamic/pituitary) versus peripheral causes of pubertal or reproductive disorders and guide additional testing or referral to pediatric endocrinology, reproductive endocrinology, or neurosurgery if anatomic lesions are suspected.

Typical site of service: outpatient hospital laboratory, independent clinical laboratory, specialty reproductive endocrinology clinic, or inpatient hospital lab when part of an inpatient endocrine workup.

Coding Specifications

Modifier	Description	When to Use
`11`	Normal, primary service	When `83727` is the principal laboratory test performed and billed as the primary service.
`26`	Professional component	When billing only for the professional interpretation or analytic oversight of the test separate from the technical component.
`TC`	Technical component	When billing only for the technical component (laboratory processing, specimen handling) of `83727`.
`90`	Reference (outside) laboratory	When the specimen is sent to an outside/third‑party laboratory and billing must indicate reference lab testing.
`52`	Reduced service	When the assay is partially performed or a reduced procedure is completed and it is appropriate to report reduced services.
`53`	Discontinued procedure	If specimen collection or testing was started but discontinued for clinical reasons before completion.
`22`	Increased procedural services	Rarely used for a lab test but applicable when unusually complex analytic procedures or substantially increased resource use are required and documented.
`59`*	Distinct procedural service	Not in the provided modifier list; omitted.
`90` Duplicate	See above.
`91`*	Repeat clinical diagnostic lab test	Not in the provided modifier list; omitted.

Taxonomy Code	Specialty	Notes
207RC0000X	Endocrinology, Diabetes & Metabolism	Specialists who order and interpret LRH testing for pubertal and reproductive disorders.
207RH0000X	Pediatric Endocrinology	Providers evaluating pubertal timing in children and adolescents.
183500000X	Clinical Laboratory	Laboratory professionals and facilities performing the `83727` assay; includes clinical pathologists and lab analysts.
2084P0800X	Obstetrics & Gynecology	Reproductive endocrinology and infertility specialists who may order LRH testing in infertility workups.
2088P0800X	Reproductive Endocrinology	Fertility specialists integrating LRH testing into infertility evaluation.

*Note: Only modifiers provided in the input were used. If alternative modifiers are required by payors, use payer-specific guidance.

ICD-10 Code	Description	Clinical Relevance
`E28.2`	Hypogonadotropic hypogonadism	Directly related to hypothalamic/pituitary causes of low gonadotropin stimulation; LRH helps differentiate central causes.
`E30.1`	Delayed puberty	LRH measurement assists in evaluating the hypothalamic contribution to delayed sexual maturation.
`E22.0`	Acromegaly and other pituitary hyperfunction*	Pituitary disorders can affect gonadotropin regulation; LRH may be measured as part of pituitary evaluation.
`N91.2`	Amenorrhea, unspecified	LRH testing contributes to the workup of secondary amenorrhea to determine central vs peripheral causes.
`N97.9`	Female infertility, unspecified	LRH is used in infertility evaluations to assess hypothalamic-pituitary axis function.

CPT Code	Description	Relationship to This Procedure
`84443`	Thyroid stimulating hormone (TSH)	Frequently ordered concurrently to evaluate broader endocrine axis when assessing pubertal or menstrual disorders.
`83001`	Drug assay, qualitative or semiquantitative (e.g., to assess exogenous hormone exposure)	Used when screening for exogenous hormone use that may affect pubertal timing or menstrual function.
`82728`	Estradiol; quantitative	Commonly performed alongside LRH to evaluate ovarian function and correlate hypothalamic-pituitary signaling with sex steroid levels.
`83020`	Cortisol; total, quantitative	Ordered when adrenal causes or broader endocrine dysfunction are in the differential diagnosis.
`84402`	Testosterone; total	Performed in evaluation of delayed or precocious puberty and disorders of sexual development to assess peripheral steroid production.

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