T27.7XXS

T27.7XXS: Corrosion of respiratory tract, part unspecified, sequela

Billable / specific codeICD-10-CMPOA exempt

T27.7XXS is a billable, specific ICD-10-CM code for corrosion of respiratory tract, part unspecified, sequela. It is valid for submission on a claim.

Check T27.7XXS with the rest of the claim: free scrubber

7th character "S": sequela

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

A: initial encounter
D: subsequent encounter
S: sequela

Code first

The underlying condition must be sequenced before this code.

(T51-T65) to identify chemical and intent

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

T27.7XXS is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A53065Billing and Coding: Outpatient Physical Therapy
A59186Billing and Coding: Magnesium

Code history

Unchanged in every release from FY2024 to FY2027.