M22.3X2 (Other derangements of patella, left knee) compared with M22.3X9 (Other derangements of patella, unspecified knee), from the official CMS tabular data. M22.3X2 and M22.3X9 code the same condition on opposite sides.
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)
Same condition, opposite side. M22.3X2 and M22.3X9 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.
| M22.3X2Other derangements of patella, left knee | M22.3X9Other derangements of patella, unspecified knee | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) | M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) |
| Definition | Other derangements of patella, left knee is a billable ICD-10-CM diagnosis code (M22.3X2). | Other derangements of patella, unspecified knee is a billable ICD-10-CM diagnosis code (M22.3X9). |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources