Does N80.329 require prior authorization?

No, N80.329 does not require prior authorization (high confidence). Covered without prior authorization.

`N80.329`, Endometriosis of the posterior cul-de-sac, unspecified depth

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

Medical records for patients receiving a once‑yearly implant must document ongoing follow‑up visits at least every 3 to 4 months and must be provided upon request; lack of requested documentation will result in denial as not medically necessary.
Physician documentation supporting reasonable expectation of survival >12 months is required for coverage of once‑yearly implants for prostate cancer.
Billing frequency should match the drug formulation administered (e.g., bill Vantas 50 mg implant once per 12 months, Eligard 22.5 mg billed per its 3‑month formulation); medical record must support billed frequency when requested.
This billing and coding article provides guidelines that complement Local Coverage Determination L34415 for CT of the abdomen and pelvis; consult LCD L34415 for specific coverage indications, limitations, and documentation requirements.

GnRH/LHRH analogs (leuprolide, goserelin, triptorelin, histrelin, leuprolide mesylate/Camcevi) are covered for FDA‑approved indications and for recognized off‑label uses that meet the criteria of LCD L33394.
Leuprolide acetate and histrelin implants administered every 12 months are covered for treatment of prostate cancer when the treating physician reasonably expects the patient to survive at least 12 months.
GnRH analogs are covered when administered at frequencies consistent with the specific product's labeled duration of action (e.g., monthly, every 3, 4, 6, or 12 months).
NGS covers leuprolide acetate (LHRH analog) as palliative treatment of advanced breast carcinoma in premenopausal and perimenopausal women.
A drug use is covered if it is an FDA-approved labeled indication or is a medically accepted off-label indication supported by one of the accepted compendia at the specified levels (AHFS-DI supportive; NCCN Category 1 or 2A; Micromedex DrugDex Class I/IIa/IIb or Clinical Pharmacology supportive; Lexi-Drugs Evidence Level A) or by articles or LCDs published by National Government Services (NGS).
Off-label uses in anti-cancer chemotherapeutic regimens are covered when they meet the Medicare definition of a medically accepted indication per the Medicare Benefit Policy Manual (Pub 100-02, Ch.15, §50.4.5).

NGS-J6-L33394, Drugs and Biologicals, Coverage of, for Label and Off-Label Uses

A52453, Billing and Coding: Luteinizing Hormone-Releasing Hormone (LHRH) Analogs

NGS-JK-L33394, Drugs and Biologicals, Coverage of, for Label and Off-Label Uses

REGENCE-SUR218, Hysterectomy

A56421

Ask Backwork about documentation requirements, denial risks, or coverage in your state.