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M61.322 vs M61.329

M61.322 (Calcification and ossification of muscles associated with burns, left upper arm) compared with M61.329 (Calcification and ossification of muscles associated with burns, unspecified upper arm), from the official CMS tabular data. M61.322 and M61.329 code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

M61.322
Left
Calcification and ossification of muscles associated with burns, left upper arm
M61.329
Unspecified
Calcification and ossification of muscles associated with burns, unspecified upper arm

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. M61.322 and M61.329 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

M61.322Calcification and ossification of muscles associated with burns, left upper armM61.329Calcification and ossification of muscles associated with burns, unspecified upper arm
Billing statusBillableBillable
ClassificationM00-M99 — Diseases of the musculoskeletal system and connective tissueM00-M99 — Diseases of the musculoskeletal system and connective tissue
DefinitionCalcification and ossification of muscles associated with burns, left upper arm is a billable ICD-10-CM diagnosis code (M61.322).Calcification and ossification of muscles associated with burns, unspecified upper arm is a billable ICD-10-CM diagnosis code (M61.329).

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