M86 is the ICD-10 code for Osteomyelitis. It is a three-character category divided into 9 subcodes; use the subcode whenever the record supports that level of detail. It belongs to the block M86–M90 (Other osteopathies) in Chapter XIII, Diseases of the musculoskeletal system and connective tissue.
- Code type
- Category (3 characters)
- Chapter
- XIII · M00–M99
- Classification
- WHO ICD-10, 2019 version
What M86 excludes
Conditions that look similar but belong under another code.
Coding notes
- Use additional code (B95-B98), if desired, to identify infectious agent.
Subcodes of M86
- M86.0Acute haematogenous osteomyelitis
- M86.1Other acute osteomyelitis
- M86.2Subacute osteomyelitis
- M86.3Chronic multifocal osteomyelitis
- M86.4Chronic osteomyelitis with draining sinus
- M86.5Other chronic haematogenous osteomyelitis
- M86.6Other chronic osteomyelitis
- M86.8Other osteomyelitis
- M86.9Osteomyelitis, unspecified
M86 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
DM86Knoglemarvsbetændelse
M86Osteomyeliitti
M86Osteomyelitis
M86Ostéomyélite
M86osteomyelitis
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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