Corrosions involving less than 10% of body surface

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2007 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.

FY2007 Added to the draft code set draft Corrosions involving less than 10% of body surface

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 T32 Corrosions classified according to extent of body surface involved

Note

This category is to be used as the primary code only when the site of the corrosion is unspecified. It may be used as a supplementary code with categories T20-T25 when the site is specified.

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.

Corrosion > extent > less than 10 percent
Corrosion > unspecified site with extent of body surface involved specified > less than 10 percent

Codes in the same group

Code	Description	Status
T32.1	Corrosions involving 10-19% of body surface	Not billable
T32.2	Corrosions involving 20-29% of body surface	Not billable
T32.3	Corrosions involving 30-39% of body surface	Not billable
T32.4	Corrosions involving 40-49% of body surface	Not billable
T32.5	Corrosions involving 50-59% of body surface	Not billable
T32.6	Corrosions involving 60-69% of body surface	Not billable
T32.7	Corrosions involving 70-79% of body surface	Not billable
T32.8	Corrosions involving 80-89% of body surface	Not billable
T32.9	Corrosions involving 90% or more of body surface	Not billable