Does D13.99 require prior authorization?

No, D13.99 does not require prior authorization (high confidence). Covered without prior authorization.

`D13.99`, Benign neoplasm of ill-defined sites within the digestive system

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

For CID codes (T38.895*/T43.215*/T43.225*/T50.995*), the medical record must document the specific chemotherapy agent(s) causing the diarrhea and prior antidiarrheal treatments that have been ineffective.
For VIPoma diagnosis codes (C25.4, C26.0, D13.7, D13.91, D13.99), the medical record must document that the patient’s diagnosis is VIPoma.
When code R79.89 is used, the medical record must document the abnormal clinical or laboratory findings that prompted suspicion of VIPoma.
When code R94.7 is used, the medical record must document an abnormal octreotide scan that prompted suspicion of VIPoma.

Octreotide is covered for chemotherapy-induced diarrhea (CID) when claim includes ICD-10-CM codes T38.895A/T38.895D/T38.895S, T43.215A/T43.215D/T43.215S, T43.225A/T43.225D/T43.225S, or T50.995A/T50.995D/T50.995S and the medical record documents the chemotherapy agent(s) causing the CID and prior antidiarrheal treatments that became ineffective.
Octreotide is covered for treatment of VIPoma when claim includes ICD-10-CM codes C25.4, C26.0, D13.7, D13.91, or D13.99 and the medical record documents that the patient’s diagnosis is VIPoma.
Octreotide may be considered when ICD-10-CM code R79.89 is submitted if the medical record documents abnormal clinical or laboratory findings that led to suspicion of VIPoma.
Octreotide may be considered when ICD-10-CM code R94.7 is submitted if the medical record documents an abnormal octreotide scan that led to suspicion of VIPoma.
Compounded medications for use in implantable infusion pumps may be covered by Medicare when their use meets all other criteria for services provided incident to a physician's service.
True off-the-shelf (non‑compounded) drugs used without compounding and administered via DME may be billed using the drug-specific HCPCS code and are reimbursed under CMS ASP methodology.

A57452, Billing and Coding: Peripheral Nerve Blocks

NGS-J6-L36850, Peripheral Nerve Blocks

FIRST_COAST-L33583, Diagnostic and Therapeutic Esophagogastroduodenoscopy

A57063, Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy

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