K90.81 — Whipple's disease
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- 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.
Key Coverage Criteria
- 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.
- EGD is covered for persistent upper abdominal distress (e.g., gastroesophageal reflux disease) that continues despite an appropriate trial of symptomatic therapy.
- EGD is covered for upper abdominal distress accompanied by a short history of concerning signs or symptoms such as weight loss, anorexia, vomiting, or NSAID/other gastric irritant intake.
10 Active Policies
L33771 — Vitamin D; 25 hydroxy, includes fraction(s), if performed
J09
A56841 — Billing and Coding: Vitamin D; 25 hydroxy, includes fraction(s), if performed
J09
A57063 — Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy
J09
L33583 — Diagnostic and Therapeutic Esophagogastroduodenoscopy
J09
Related Codes
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