LH (Luteinizing Hormone)

CPT: 83002
Hormones

What This Test Measures

Pituitary hormone triggering ovulation in women and testosterone production in men.

Preparation

No fasting required
For cycling women, Day 2–4 is standard for baseline. Draw in the morning when LH peaks. If post-menopausal, timing is less critical.

General guidelines only. Requirements vary by lab and individual. Confirm with your provider before adjusting any medications.

Turnaround Time

Varies by lab

Clinical Notes

LH surge triggers ovulation; day 3 LH used in fertility workup

ICD-10 Codes

Common diagnosis codes associated with this test. Codes are assigned by your provider.

E28.39Other ovarian dysfunction
E29.1Testicular hypofunction
N91.2Amenorrhea, unspecified
N97.8Other female infertility

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Lab Codes

Proprietary codes used by each lab for this test.

ACL Laboratories
LH(order)
American Esoteric Labs
E538(order_code)
ARUP Laboratories
0070082(order_code)
BioReference Laboratories
0342-6(order_code)
Cleveland Clinic
LH(mnemonic)
Clinical Labs of Hawaii
0253(order_code)
CPL
2776(order_code)
Geisinger Medical Labs
LAB2608(lab_id)
Interpath Laboratory
2167(order_code)
LabCorp
004283(order_code)
LabCorp
004333(order_code)
Mayo Clinic Labs
LH/8283(order_code)
Northwell Health Labs
5300410(order_code)
NYU Langone Health
LAB87(order_code)
Quest Diagnostics
615(order_code)
Quest Diagnostics
8663(order_code)
Stanford Health Care
LUT(order_code)

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For informational purposes only

This page is for educational and research purposes only and does not constitute medical advice, diagnosis, or treatment recommendations. ICD-10 and CPT codes are assigned by your healthcare provider. Always consult a qualified healthcare provider before ordering any lab test or making decisions about your health.