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M23.621 vs M23.622

M23.621 (Other spontaneous disruption of posterior cruciate ligament of right knee) compared with M23.622 (Other spontaneous disruption of posterior cruciate ligament of left knee), from the official CMS tabular data. M23.621 and M23.622 code the same condition on opposite sides. MedCoder-derived

Relationship

Review

Laterality relationship

M23.621
Right
Other spontaneous disruption of posterior cruciate ligament of right knee
M23.622
Left
Other spontaneous disruption of posterior cruciate ligament of left knee

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. M23.621 and M23.622 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

M23.621Other spontaneous disruption of posterior cruciate ligament of right kneeM23.622Other spontaneous disruption of posterior cruciate ligament of left knee
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)
DefinitionOther spontaneous disruption of posterior cruciate ligament of right knee is a billable ICD-10-CM diagnosis code (M23.621).Other spontaneous disruption of posterior cruciate ligament of left knee is a billable ICD-10-CM diagnosis code (M23.622).

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