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S56.811A vs S56.819A

S56.811A (Strain of other muscles, fascia and tendons at forearm level, right arm, initial encounter) compared with S56.819A (Strain of other muscles, fascia and tendons at forearm level, unspecified arm, initial encounter), from the official CMS tabular data. S56.811A and S56.819A code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S56.811A
Right
Strain of other muscles, fascia and tendons at forearm level, right arm, initial encounter
↔
S56.819A
Unspecified
Strain of other muscles, fascia and tendons at forearm level, unspecified 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. S56.811A and S56.819A 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

S56.811AStrain of other muscles, fascia and tendons at forearm level, right arm, initial encounterS56.819AStrain of other muscles, fascia and tendons at forearm level, unspecified 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)
DefinitionStrain of other muscles, fascia and tendons at forearm level, right arm, initial encounter is a billable ICD-10-CM diagnosis code (S56.811A).Strain of other muscles, fascia and tendons at forearm level, unspecified arm, initial encounter is a billable ICD-10-CM diagnosis code (S56.819A).
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