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M11.012 vs M11.019

M11.012 (Hydroxyapatite deposition disease, left shoulder) compared with M11.019 (Hydroxyapatite deposition disease, unspecified shoulder), from the official CMS tabular data. M11.012 and M11.019 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

M11.012
Left
Hydroxyapatite deposition disease, left shoulder
M11.019
Unspecified
Hydroxyapatite deposition disease, unspecified shoulder

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. M11.012 and M11.019 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

M11.012Hydroxyapatite deposition disease, left shoulderM11.019Hydroxyapatite deposition disease, unspecified shoulder
Billing statusBillableBillable
ClassificationM00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)
DefinitionHydroxyapatite deposition disease, left shoulder is a billable ICD-10-CM diagnosis code (M11.012).Hydroxyapatite deposition disease, unspecified shoulder is a billable ICD-10-CM diagnosis code (M11.019).

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