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M89.157 vs M89.158

M89.157 (Partial physeal arrest, right distal femur) compared with M89.158 (Partial physeal arrest, left distal femur), from the official CMS tabular data. M89.157 and M89.158 code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

M89.157
Right
Partial physeal arrest, right distal femur
M89.158
Left
Partial physeal arrest, left distal femur

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. M89.157 and M89.158 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

M89.157Partial physeal arrest, right distal femurM89.158Partial physeal arrest, left distal femur
Billing statusBillableBillable
ClassificationM00-M99 — Diseases of the musculoskeletal system and connective tissueM00-M99 — Diseases of the musculoskeletal system and connective tissue
DefinitionPartial physeal arrest, right distal femur is a billable ICD-10-CM diagnosis code (M89.157).Partial physeal arrest, left distal femur is a billable ICD-10-CM diagnosis code (M89.158).

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