Is T27.7XXA a billable ICD-10-CM code?

Yes. T27.7XXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does T27.7XXA sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Burns and corrosions confined to eye and internal organs (T26-T28).

T27.7XXA

T27.7XXA — Corrosion of respiratory tract, part unspecified, initial encounter

Billable / specific codeICD-10-CM

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

7th character "A" — initial encounter

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

T27.7XXA does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

T27.7XXA is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A53065Billing and Coding: Outpatient Physical Therapy
A57205Billing and Coding: Oximetry Services
A59186Billing and Coding: Magnesium

Related codes at this level

Codes that share T27.7. If T27.7XXA is not quite right, the correct code is usually one of these.

Questions about T27.7XXA

Is T27.7XXA a billable ICD-10-CM code?: Yes. T27.7XXA is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T27.7XXA sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Burns and corrosions confined to eye and internal organs (T26-T28).