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S56.201A vs S56.202A

S56.201A (Unspecified injury of other flexor muscle, fascia and tendon at forearm level, right arm, initial encounter) compared with S56.202A (Unspecified injury of other flexor muscle, fascia and tendon at forearm level, left arm, initial encounter), from the official CMS tabular data. S56.201A and S56.202A code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S56.201A
Right
Unspecified injury of other flexor muscle, fascia and tendon at forearm level, right arm, initial encounter
S56.202A
Left
Unspecified injury of other flexor muscle, fascia and tendon at forearm level, left arm, initial encounter

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. S56.201A and S56.202A 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

S56.201AUnspecified injury of other flexor muscle, fascia and tendon at forearm level, right arm, initial encounterS56.202AUnspecified injury of other flexor muscle, fascia and tendon at forearm level, left arm, initial encounter
Billing statusBillableBillable
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 injury of other flexor muscle, fascia and tendon at forearm level, right arm, initial encounter is a billable ICD-10-CM diagnosis code (S56.201A).Unspecified injury of other flexor muscle, fascia and tendon at forearm level, left arm, initial encounter is a billable ICD-10-CM diagnosis code (S56.202A).
7th characterThe appropriate 7th character is to be added to each code from category S56The appropriate 7th character is to be added to each code from category S56

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