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S91.202 vs S91.203

S91.202 (Unspecified open wound of left great toe with damage to nail) compared with S91.203 (Unspecified open wound of unspecified great toe with damage to nail), from the official CMS tabular data. S91.202 and S91.203 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S91.202
Left
Unspecified open wound of left great toe with damage to nail
S91.203
Unspecified
Unspecified open wound of unspecified great toe with damage to nail

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. S91.202 and S91.203 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

S91.202Unspecified open wound of left great toe with damage to nailS91.203Unspecified open wound of unspecified great toe with damage to nail
Billing statusNon-billable header

Report instead: S91.202A, S91.202D, S91.202S

Non-billable header

Report instead: S91.203A, S91.203D, S91.203S

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)
DefinitionUnspecified open wound of left great toe with damage to nail is a non-billable ICD-10-CM category code (S91.202).Unspecified open wound of unspecified great toe with damage to nail is a non-billable ICD-10-CM category code (S91.203).
7th characterThe appropriate 7th character is to be added to each code from category S91The appropriate 7th character is to be added to each code from category S91

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