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S86.391D vs S86.392D

S86.391D (Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, right leg, subsequent encounter) compared with S86.392D (Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left leg, subsequent encounter), from the official CMS tabular data. S86.391D and S86.392D code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S86.391D
Right
Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, right leg, subsequent encounter
S86.392D
Left
Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left 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. S86.391D and S86.392D 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

S86.391DOther injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, right leg, subsequent encounterS86.392DOther injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left 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)
DefinitionOther injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, right leg, subsequent encounter is a billable ICD-10-CM diagnosis code (S86.391D).Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, left leg, subsequent encounter is a billable ICD-10-CM diagnosis code (S86.392D).
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