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S86.912D vs S86.919D

S86.912D (Strain of unspecified muscle(s) and tendon(s) at lower leg level, left leg, subsequent encounter) compared with S86.919D (Strain of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, subsequent encounter), from the official CMS tabular data. S86.912D and S86.919D code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S86.912D
Left
Strain of unspecified muscle(s) and tendon(s) at lower leg level, left leg, subsequent encounter
S86.919D
Unspecified
Strain of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, 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. S86.912D and S86.919D 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

S86.912DStrain of unspecified muscle(s) and tendon(s) at lower leg level, left leg, subsequent encounterS86.919DStrain of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, 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)
DefinitionStrain of unspecified muscle(s) and tendon(s) at lower leg level, left leg, subsequent encounter is a billable ICD-10-CM diagnosis code (S86.912D).Strain of unspecified muscle(s) and tendon(s) at lower leg level, unspecified leg, subsequent encounter is a billable ICD-10-CM diagnosis code (S86.919D).
7th characterThe appropriate 7th character is to be added to each code from category S86The appropriate 7th character is to be added to each code from category S86

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