S45.901 vs S45.909

S45.901 (Unspecified injury of unspecified blood vessel at shoulder and upper arm level, right arm) compared with S45.909 (Unspecified injury of unspecified blood vessel at shoulder and upper arm level, unspecified arm), from the official CMS tabular data. S45.901 and S45.909 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S45.901

Right

Unspecified injury of unspecified blood vessel at shoulder and upper arm level, right arm

↔

S45.909

Unspecified

Unspecified injury of unspecified blood vessel at shoulder and upper arm level, unspecified arm

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. S45.901 and S45.909 name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

	S45.901Unspecified injury of unspecified blood vessel at shoulder and upper arm level, right arm	S45.909Unspecified injury of unspecified blood vessel at shoulder and upper arm level, unspecified arm
Billing status	Non-billable header Report instead: S45.901A, S45.901D, S45.901S	Non-billable header Report instead: S45.909A, S45.909D, S45.909S
Classification	S00-T88 — Injury, poisoning and certain other consequences of external causes	S00-T88 — Injury, poisoning and certain other consequences of external causes
Definition	Unspecified injury of unspecified blood vessel at shoulder and upper arm level, right arm is a non-billable ICD-10-CM category code (S45.901).	Unspecified injury of unspecified blood vessel at shoulder and upper arm level, unspecified arm is a non-billable ICD-10-CM category code (S45.909).
7th character	The appropriate 7th character is to be added to each code from category S45	The appropriate 7th character is to be added to each code from category S45
Includes	injuries of axilla injuries of scapular region	injuries of axilla injuries of scapular region

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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources