T28.5

Billable code

Corrosion of mouth and pharynx

The ICD-10 code for corrosion of mouth and pharynx is T28.5.

Clinical notes

Code first

This code represents a manifestation of an underlying disease. Coding convention requires the underlying (etiology) code to be sequenced first, with this code listed second.

(T51-T65) to identify chemical and intent

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

•This code represents a manifestation. Documentation should identify the underlying condition, which must be coded first.
•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Related codes in this category

T28.0Burn of mouth and pharynx
T28.1Burn of esophagus
T28.2Burn of other parts of alimentary tract
T28.3Burn of internal genitourinary organs
T28.4Burns of other and unspecified internal organsnon-billable header
T28.6Corrosion of esophagus
T28.7Corrosion of other parts of alimentary tract
T28.8Corrosion of internal genitourinary organs
T28.9Corrosions of other and unspecified internal organsnon-billable header
T28.5Corrosion of mouth and pharynx