Is S44.12XS a billable ICD-10-CM code?

Yes. S44.12XS is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does S44.12XS sit in the tabular list?

Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the shoulder and upper arm (S40-S49).

What cannot be coded together with S44.12XS?

S44.12XS carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above S44.12XS (S44.1) and apply to it just the same.

S44.12XS

S44.12XS — Injury of median nerve at upper arm level, left arm, sequela

Billable / specific codeICD-10-CMPOA exemptleft

S44.12XS is a billable, specific ICD-10-CM code for injury of median nerve at upper arm level, left arm, sequela. It is valid for submission on a claim.

7th character "S" — sequela

The appropriate 7th character is to be added to each code from category S44

A: initial encounter
D: subsequent encounter
S: sequela

Excludes1 inherited from the categories above S44.12XS

These are not written on S44.12XS, but they bind it: a note on a category applies to every code beneath it. Billing S44.12XS with anything listed here is a denial.

Written on S44.1 — Injury of median nerve at upper arm level

median nerve NOS (S54.1)

Excludes2 inherited from the categories above S44.12XS

Also inherited, and the opposite of Excludes1: these conditions are not part of S44.12XS, but a patient can have both, so you may code both.

Written on S44 — Injury of nerves at shoulder and upper arm level

injury of brachial plexus (S14.3-)

Risk adjustment

S44.12XS 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

S44.12XS is named in 11 Medicare coverage policies — 11 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A53057Billing and Coding: Home Health Occupational Therapy
A53064Billing and Coding: Outpatient Occupational Therapy
A53065Billing and Coding: Outpatient Physical Therapy
A54095Billing and Coding: Nerve Conduction Studies and Electromyography

Code history

S44.12XS has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share S44.12. If S44.12XS is not quite right, the correct code is usually one of these.

Questions about S44.12XS

Is S44.12XS a billable ICD-10-CM code?: Yes. S44.12XS is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S44.12XS sit in the tabular list?: Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Injuries to the shoulder and upper arm (S40-S49).
What cannot be coded together with S44.12XS?: S44.12XS carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above S44.12XS (S44.1) and apply to it just the same.