S46.921 vs S46.922

S46.921 (Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level, right arm) compared with S46.922 (Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level, left arm), from the official CMS tabular data. S46.921 and S46.922 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S46.921

Right

Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level, right arm

↔

S46.922

Left

Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level, left 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. S46.921 and S46.922 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

	S46.921Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level, right arm	S46.922Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level, left arm
Billing status	Non-billable header Report instead: S46.921A, S46.921D, S46.921S	Non-billable header Report instead: S46.922A, S46.922D, S46.922S
Classification	S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)	S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
Definition	Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level, right arm is a non-billable ICD-10-CM category code (S46.921).	Laceration of unspecified muscle, fascia and tendon at shoulder and upper arm level, left arm is a non-billable ICD-10-CM category code (S46.922).
7th character	The appropriate 7th character is to be added to each code from category S46	The appropriate 7th character is to be added to each code from category S46
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