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S56.821D vs S56.822D

S56.821D (Laceration of other muscles, fascia and tendons at forearm level, right arm, subsequent encounter) compared with S56.822D (Laceration of other muscles, fascia and tendons at forearm level, left arm, subsequent encounter), from the official CMS tabular data. S56.821D and S56.822D code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S56.821D
Right
Laceration of other muscles, fascia and tendons at forearm level, right arm, subsequent encounter
↔
S56.822D
Left
Laceration of other muscles, fascia and tendons at forearm level, left arm, subsequent 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. S56.821D and S56.822D 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

S56.821DLaceration of other muscles, fascia and tendons at forearm level, right arm, subsequent encounterS56.822DLaceration of other muscles, fascia and tendons at forearm level, left arm, subsequent 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)
DefinitionLaceration of other muscles, fascia and tendons at forearm level, right arm, subsequent encounter is a billable ICD-10-CM diagnosis code (S56.821D).Laceration of other muscles, fascia and tendons at forearm level, left arm, subsequent encounter is a billable ICD-10-CM diagnosis code (S56.822D).
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