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S96.121 vs S96.122

S96.121 (Laceration of muscle and tendon of long extensor muscle of toe at ankle and foot level, right foot) compared with S96.122 (Laceration of muscle and tendon of long extensor muscle of toe at ankle and foot level, left foot), from the official CMS tabular data. S96.121 and S96.122 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S96.121
Right
Laceration of muscle and tendon of long extensor muscle of toe at ankle and foot level, right foot
S96.122
Left
Laceration of muscle and tendon of long extensor muscle of toe at ankle and foot level, left foot

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. S96.121 and S96.122 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

S96.121Laceration of muscle and tendon of long extensor muscle of toe at ankle and foot level, right footS96.122Laceration of muscle and tendon of long extensor muscle of toe at ankle and foot level, left foot
Billing statusNon-billable header

Report instead: S96.121A, S96.121D, S96.121S

Non-billable header

Report instead: S96.122A, S96.122D, S96.122S

ClassificationS00-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)
DefinitionLaceration of muscle and tendon of long extensor muscle of toe at ankle and foot level, right foot is a non-billable ICD-10-CM category code (S96.121).Laceration of muscle and tendon of long extensor muscle of toe at ankle and foot level, left foot is a non-billable ICD-10-CM category code (S96.122).
7th characterThe appropriate 7th character is to be added to each code from category S96The appropriate 7th character is to be added to each code from category S96

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