Does D81.819 require prior authorization?

No, D81.819 does not require prior authorization (high confidence). Code is covered without prior authorization.

`D81.819` — Biotin-dependent carboxylase deficiency, unspecified

ICD-10-CM

No Prior Auth Required

Code is covered without prior authorization (high confidence)

When routine foot care needs to meet one of the exclusions, include the applicable Q modifier on the claim: Q7 for 1 Class A finding, Q8 for 2 Class B findings, and Q9 for 1 Class B plus 2 Class C findings.
For all foot-care claims report an appropriate foot/toe location modifier (e.g., LT, RT, TA, T1-T9) to identify laterality and specific toe when applicable.
If a significant, separately identifiable evaluation and management service is provided on the same day as routine foot care, append modifier -25 to the E/M claim line.
Total the number of keratotic lesions debrided and select the most appropriate CPT code 11055-11057 based on that total (example: code 11056 for two to four lesions).

Removal of corns and calluses of the feet must be billed using CPT codes 11055-11057 (paring/cutting of benign hyperkeratotic lesion) and the procedure code that most accurately describes the service performed should be reported.
For tests that currently lack specific CPT codes (functional intracellular analysis and total antioxidant function), bill using CPT 84999 and add a note identifying which test was performed in the Remarks area for Part A claims and the Narrative area for Part B claims.
Coverage and reasonable/necessary determinations for assays for vitamins and metabolic function are governed by LCD L34914 and claims must meet that LCD's requirements to be covered.
Routine foot care is covered only when the patient has one or more diagnoses listed in the LCD L33941 “ICD-10 Codes that Support Medical Necessity.”
Patients with peripheral neuropathy involving the feet (without vascular impairment) are covered when billed with the Group 3 ICD-10 codes appropriate for peripheral neuropathy.
Patients requiring anticoagulation therapy are covered when billed with the Group 4 ICD-10 codes documenting anticoagulation-related risk.

L39226 — Multiplex Gastrointestinal Pathogen Panel (GPP) Tests for Acute Gastroenteritis (AGE)

J06

A58963 — Billing and Coding: Multiplex Gastrointestinal Pathogen Panel (GPP) Tests for Acute Gastroenteritis (AGE)

J06

L34914 — Assays for Vitamins and Metabolic Function

J12

L35138 — Routine Foot Care

J12

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