N80.549 — Endometriosis of the appendix, unspecified depth
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- 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.
Key Coverage Criteria
- 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).
- Colonoscopy/sigmoidoscopy/proctosigmoidoscopy is covered for surveillance of colonic neoplasia in patients with a history of colorectal cancer or colonic polyps.
- A follow-up procedure is covered 1 year after surgery for treatment of colorectal cancer when the patient is identified as high-risk for colon cancer and is eligible for continued screenings.
- NGS covers leuprolide acetate (LHRH analog) as palliative treatment of advanced breast carcinoma in premenopausal and perimenopausal women.
6 Active Policies
A52453 — Billing and Coding: Luteinizing Hormone-Releasing Hormone (LHRH) Analogs
J06
L33394 — Drugs and Biologicals, Coverage of, for Label and Off-Label Uses
J06
A56421 — Billing and Coding: CT of the Abdomen and Pelvis
A56632 — Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
L34454 — Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy
Related Codes
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