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S86.991S vs S86.992S

S86.991S (Other injury of unspecified muscle(s) and tendon(s) at lower leg level, right leg, sequela) compared with S86.992S (Other injury of unspecified muscle(s) and tendon(s) at lower leg level, left leg, sequela), from the official CMS tabular data. S86.991S and S86.992S code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S86.991S
Right
Other injury of unspecified muscle(s) and tendon(s) at lower leg level, right leg, sequela
↔
S86.992S
Left
Other injury of unspecified muscle(s) and tendon(s) at lower leg level, left leg, 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. S86.991S and S86.992S 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

S86.991SOther injury of unspecified muscle(s) and tendon(s) at lower leg level, right leg, sequelaS86.992SOther injury of unspecified muscle(s) and tendon(s) at lower leg level, left leg, 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)
DefinitionOther injury of unspecified muscle(s) and tendon(s) at lower leg level, right leg, sequela is a billable ICD-10-CM diagnosis code (S86.991S).Other injury of unspecified muscle(s) and tendon(s) at lower leg level, left leg, sequela is a billable ICD-10-CM diagnosis code (S86.992S).
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
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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