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S61.203A vs S61.203S

S61.203A (Unspecified open wound of left middle finger without damage to nail, initial encounter) compared with S61.203S (Unspecified open wound of left middle finger without damage to nail, sequela), from the official CMS tabular data. S61.203A and S61.203S code the same injury at a different phase of treatment.

Can these codes be reported together?

Same injury, other encounter phase. S61.203A and S61.203S code the same injury at a different phase of treatment, set by the 7th character.

The 7th character records the type of care given at the encounter being coded (ICD-10-CM Official Guidelines, Section I.C.19.a), so one encounter takes one of these, not both.

Side by side

S61.203AUnspecified open wound of left middle finger without damage to nail, initial encounterS61.203SUnspecified open wound of left middle finger without damage to nail, sequela
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 open wound of left middle finger without damage to nail, initial encounter is a billable ICD-10-CM diagnosis code (S61.203A).Unspecified open wound of left middle finger without damage to nail, sequela is a billable ICD-10-CM diagnosis code (S61.203S).
7th characterThe appropriate 7th character is to be added to each code from category S61The appropriate 7th character is to be added to each code from category S61

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