M86.142 (Other acute osteomyelitis, left hand) compared with M86.149 (Other acute osteomyelitis, unspecified hand), from the official CMS tabular data. M86.142 and M86.149 code the same condition on opposite sides. MedCoder-derived
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. M86.142 and M86.149 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.
| M86.142Other acute osteomyelitis, left hand | M86.149Other acute osteomyelitis, unspecified hand | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | M00-M99 — Diseases of the musculoskeletal system and connective tissue | M00-M99 — Diseases of the musculoskeletal system and connective tissue |
| Definition | Other acute osteomyelitis, left hand is a billable ICD-10-CM diagnosis code (M86.142). | Other acute osteomyelitis, unspecified hand is a billable ICD-10-CM diagnosis code (M86.149). |
| Use additional code | code (B95-B97) to identify infectious agent code to identify major osseous defect, if applicable (M89.7-) | code (B95-B97) to identify infectious agent code to identify major osseous defect, if applicable (M89.7-) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources