M86.1
⚠ Non-billable (Header)Other acute osteomyelitis
Diseases of the musculoskeletal system and connective tissue (M00-M99)
⚠️ This is a category header code — not billable. Use a more specific child code below.
❌ Excludes1
inherited from M86Rules from parent category M86: Osteomyelitis
- • osteomyelitis due to:
- • echinococcus (B67.2)
- • gonococcus (A54.43)
- • salmonella (A02.24)
⚠️ Excludes2
inherited from M86Rules from parent category M86: Osteomyelitis
- • ostemyelitis of:
- • orbit (H05.0-)
- • petrous bone (H70.2-)
- • vertebra (M46.2-)
Child Codes (10)
M86.10Other acute osteomyelitis, unspecified siteM86.11Other acute osteomyelitis, shoulderM86.12Other acute osteomyelitis, humerusM86.13Other acute osteomyelitis, radius and ulnaM86.14Other acute osteomyelitis, handM86.15Other acute osteomyelitis, femurM86.16Other acute osteomyelitis, tibia and fibulaM86.17Other acute osteomyelitis, ankle and footM86.18Other acute osteomyelitis, other siteM86.19Other acute osteomyelitis, multiple sites
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CodeM86.1
BillableNo — Header code
ParentM86
CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)
Excludes14 rule(s)
Excludes24 note(s)
Child codes10
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)