Is S45.309S a billable ICD-10-CM code?

Yes. S45.309S is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does S45.309S 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).

S45.309S

S45.309S — Unspecified injury of superficial vein at shoulder and upper arm level, unspecified arm, sequela

Billable / specific codeICD-10-CMPOA exemptunspecified

S45.309S is a billable, specific ICD-10-CM code for unspecified injury of superficial vein at shoulder and upper arm level, unspecified 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 S45

A: initial encounter
D: subsequent encounter
S: sequela

Excludes2 inherited from the categories above S45.309S

Also inherited, and the opposite of Excludes1: these conditions are not part of S45.309S, but a patient can have both, so you may code both.

Written on S45 — Injury of blood vessels at shoulder and upper arm level

injury of subclavian artery (S25.1)
injury of subclavian vein (S25.3)

Risk adjustment

S45.309S 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.

Code history

S45.309S 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 S45.309. If S45.309S is not quite right, the correct code is usually one of these.

Questions about S45.309S

Is S45.309S a billable ICD-10-CM code?: Yes. S45.309S is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does S45.309S 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).