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S82.231M vs S82.232M

S82.231M (Displaced oblique fracture of shaft of right tibia, subsequent encounter for open fracture type I or II with nonunion) compared with S82.232M (Displaced oblique fracture of shaft of left tibia, subsequent encounter for open fracture type I or II with nonunion), from the official CMS tabular data. S82.231M and S82.232M code the same condition on opposite sides.

Relationship

Review

Laterality relationship

S82.231M
Right
Displaced oblique fracture of shaft of right tibia, subsequent encounter for open fracture type I or II with nonunion
S82.232M
Left
Displaced oblique fracture of shaft of left tibia, subsequent encounter for open fracture type I or II with nonunion

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. S82.231M and S82.232M 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

S82.231MDisplaced oblique fracture of shaft of right tibia, subsequent encounter for open fracture type I or II with nonunionS82.232MDisplaced oblique fracture of shaft of left tibia, subsequent encounter for open fracture type I or II with nonunion
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)
DefinitionDisplaced oblique fracture of shaft of right tibia, subsequent encounter for open fracture type I or II with nonunion is a billable ICD-10-CM diagnosis code (S82.231M).Displaced oblique fracture of shaft of left tibia, subsequent encounter for open fracture type I or II with nonunion is a billable ICD-10-CM diagnosis code (S82.232M).
7th characterThe appropriate 7th character is to be added to all codes from category S82The appropriate 7th character is to be added to all codes from category S82
Includes
fracture of malleolus
fracture of malleolus

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