ICD-10-CM › S00-T88 › T26-T28 › T27 Burn and corrosion of respiratory tract › T27.5

T27.5

Corrosion involving larynx and trachea with lung

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

  • T27.5XXA Corrosion involving larynx and trachea with lung, initial encounter
  • T27.5XXD Corrosion involving larynx and trachea with lung, subsequent encounter
  • T27.5XXS Corrosion involving larynx and trachea with lung, sequela

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2014 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2014 Added to the draft code set draft Corrosion involving larynx and trachea with lung

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from T27 Burn and corrosion of respiratory tract

Seventh character required

  • The appropriate 7th character is to be added to each code from category T27

Use additional code

  • external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98)
  • external cause code to identify place (Y92)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
T27.0 Burn of larynx and trachea Not billable
T27.1 Burn involving larynx and trachea with lung Not billable
T27.2 Burn of other parts of respiratory tract Not billable
T27.3 Burn of respiratory tract, part unspecified Not billable
T27.4 Corrosion of larynx and trachea Not billable
T27.6 Corrosion of other parts of respiratory tract Not billable
T27.7 Corrosion of respiratory tract, part unspecified Not billable