Does K91.2 require prior authorization?

No, K91.2 does not require prior authorization (high confidence). Code is covered without prior authorization.

`K91.2` — Postsurgical malabsorption, not elsewhere classified

ICD-10-CM

No Prior Auth Required

Code is covered without prior authorization (high confidence)

The submitted medical record must support the selected ICD-10-CM code(s), and the submitted CPT/HCPCS code must accurately describe the service performed.
The medical record must include the legible signature of the physician or non-physician practitioner responsible for and providing the care.
When billing CPT 84999 for the listed tests, include a note identifying the specific test in the Remarks (Part A) or Narrative (Part B) area of the claim.
All documentation must be maintained in the patient's medical record, be legible, include patient identification (e.g., complete name) and dates of service, and be made available to the contractor upon request.

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.
25-hydroxy vitamin D testing (including fractions, if performed) is covered when deemed reasonable and necessary per Local Coverage Determination L33771.
Esophagogastroduodenoscopy (EGD) is covered when it meets the reasonable and necessary requirements specified in Local Coverage Determination L33583.
Routine foot care and debridement of nails are payable under Medicare Part B when performed in approved places of service (POS 11,12,13,14,19,20[11720/11721 only],21,22,24,31,32,33,49,51,52,53,54,55,56,61,62,65,71,99).
Debridement of mycotic (onychomycosis/dermatophytosis) nails is covered only when the claim lists a primary diagnosis of dermatophytosis of the nail plus either a secondary systemic condition or an ICD-10-CM code from the LCD 'ICD-10-CM Codes that Support Medical Necessity' indicating secondary infection or pain.

L34658 — Vitamin D Assay Testing

J05

A57484 — Billing and Coding: Vitamin D Assay Testing

J05

A57759 — Billing and Coding: Routine Foot Care and Debridement of Nails

J06

A57736 — Billing and Coding: Vitamin D Assay Testing

J06

L33636 — Routine Foot Care and Debridement of Nails

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