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S56.427S vs S56.428S

S56.427S (Laceration of extensor muscle, fascia and tendon of right little finger at forearm level, sequela) compared with S56.428S (Laceration of extensor muscle, fascia and tendon of left little finger at forearm level, sequela), from the official CMS tabular data. S56.427S and S56.428S code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S56.427S
Right
Laceration of extensor muscle, fascia and tendon of right little finger at forearm level, sequela
↔
S56.428S
Left
Laceration of extensor muscle, fascia and tendon of left little finger at forearm level, sequela

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. S56.427S and S56.428S 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

S56.427SLaceration of extensor muscle, fascia and tendon of right little finger at forearm level, sequelaS56.428SLaceration of extensor muscle, fascia and tendon of left little finger at forearm level, 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)
DefinitionLaceration of extensor muscle, fascia and tendon of right little finger at forearm level, sequela is a billable ICD-10-CM diagnosis code (S56.427S).Laceration of extensor muscle, fascia and tendon of left little finger at forearm level, sequela is a billable ICD-10-CM diagnosis code (S56.428S).
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
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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