Does E43 require prior authorization?

No, E43 does not require prior authorization (high confidence). Code is covered without prior authorization.

`E43`, Unspecified severe protein-calorie malnutrition

ICD-10-CM

No Prior Auth Required

Code is covered without prior authorization (high confidence)

This billing and coding guidance complements Local Coverage Determination L34434; follow LCD L34434 for clinical coverage criteria and required documentation for claims.
All services billed with unlisted procedure codes must include sufficient medical records and supporting documentation to allow development and medical review.
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.

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.
Vitamin D assay testing billed to Medicare Part A or Part B MAC is covered when ordered by an authorized provider (physician or state-authorized non-physician) and the service is otherwise consistent with local coverage determination L33996.
A valid ICD-10-CM diagnosis code that best describes the patient's condition prompting the Vitamin D assay must be reported on the claim; for diagnostic tests, report the test result if known, otherwise report the presenting symptoms.
When a referring/ordering provider is required, the referring/ordering provider name and NPI must be reported on the claim.
Upper gastrointestinal endoscopy (diagnostic or therapeutic) is covered when determined reasonable and necessary per Local Coverage Determination L35350.

CGS-L33996, Vitamin D Assay Testing

J15

A57736, Billing and Coding: Vitamin D Assay Testing

NOVITAS-L34914, Assays for Vitamins and Metabolic Function

NOVITAS-L35350, Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)

NGS-L37535

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