Does T20.55XA require prior authorization?

No, T20.55XA does not require prior authorization (high confidence). Covered without prior authorization.

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`T20.55XA`, Corrosion of first degree of scalp [any part], initial encounter

ICD-10-CM

Prior Authorization

No Prior Auth Required

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.

The article provides billing/coding guidance that complements LCD L39400; use the documentation, prior authorization, and claim submission requirements specified in LCD L39400 and the local contractor's instructions.

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.
No specific clinical indications are listed in this article; follow the Local Coverage Determination (LCD) L39400 for indications for magnesium testing or services.
Preventive immunizations are covered for pneumococcal, hepatitis B, and influenza vaccines.
When the patient has not been previously immunized for rabies, coverage includes RIG (half IM and half wound on day 0) plus HDCV on days 0, 3, 7, 14, and 28.
Vaccinations are covered only when directly related to treatment of an injury or direct exposure to a disease/condition listed in this policy.

5 Active Policies

WPS-J5-L34596, Immunizations

A56900, Billing and Coding: Immunizations

WPS-J8-L34596, Immunizations

A57204, Billing and Coding: MRI and CT Scans of the Head and Neck

A59186, Billing and Coding: Magnesium

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T20.55XA, Corrosion of first degree of scalp [any part], initial encounter