K83.9 — Disease of biliary tract, unspecified
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.
- This billing and coding article provides guidelines that complement Local Coverage Determination L34415 for CT of the abdomen and pelvis; consult LCD L34415 for specific coverage indications, limitations, and documentation requirements.
- All documentation must be maintained in the patient’s medical record and made available to the contractor upon request.
Key Coverage Criteria
- Upper gastrointestinal endoscopy (diagnostic or therapeutic) is covered when determined reasonable and necessary per Local Coverage Determination L35350.
- Vitamin D assay testing is payable under Medicare Part B when performed in an office (POS 11), independent clinic (POS 49), Federally Qualified Health Center (POS 50), or independent laboratory (POS 81).
- Non-physician practitioners (e.g., nurse practitioners, clinical nurse specialists, physician assistants) may certify, order, and establish the plan of care for Vitamin D assay testing as authorized by State law (outpatient settings other than CORFs).
- CT abdomen is medically necessary to evaluate abdominal pain.
- CT abdomen is medically necessary to evaluate known or suspected abdominal masses or fluid collections.
- CT abdomen is medically necessary for evaluation of primary or metastatic malignancies in the abdomen.
11 Active Policies
L34658 — Vitamin D Assay Testing
J05
A57484 — Billing and Coding: Vitamin D Assay Testing
J05
A57414 — Billing and Coding: Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)
J12
L35350 — Upper Gastrointestinal Endoscopy (Diagnostic and Therapeutic)
J12
A56421
Related Codes
Have a follow-up question?
Ask Verity about documentation requirements, denial risks, or coverage in your state.