T20.57XA — Corrosion of first degree of neck, initial encounter
ICD-10-CM
Prior Authorization
No Prior Auth Required
Code is covered without prior authorization (high confidence)
Documentation Required
- Billing and coding for immunizations must follow the coverage indications, limitations, and medical necessity criteria set forth in the associated Local Coverage Determination LCD L34596 (Immunizations).
- Medical records must include history and physical notes, laboratory results, and documentation of signs and symptoms that warrant the head/neck diagnostic imaging.
- Accurate HCPCS/CPT coding must be submitted to differentiate CT and MRI scans from other radiology services and to support coverage determinations.
- Documentation and supporting information must be available to Medicare upon request.
Key Coverage Criteria
- CT or MRI scans of the head or neck are covered when the medical record documents the scan is reasonable and necessary for diagnostic evaluation.
- Coverage requires documentation supporting clinical indication such as history and physical exam findings, laboratory results, and signs or symptoms that justify the diagnostic test.
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8 Active Policies
L34596 — Immunizations
J05
A56900 — Billing and Coding: Immunizations
J05
A59186 — Billing and Coding: Magnesium
L35175 — MRI and CT Scans of the Head and Neck
L37373 — MRI and CT Scans of the Head and Neck
Related Codes
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