M86
Header — not billableOsteomyelitis
The ICD-10 code for osteomyelitis is M86.
M86 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 9 more specific codes below.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
Use additional code
This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.
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Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under M86
- M86.0Acute hematogenous osteomyelitisnon-billable header
- M86.1Other acute osteomyelitisnon-billable header
- M86.2Subacute osteomyelitisnon-billable header
- M86.3Chronic multifocal osteomyelitisnon-billable header
- M86.4Chronic osteomyelitis with draining sinusnon-billable header
- M86.5Other chronic hematogenous osteomyelitisnon-billable header
- M86.6Other chronic osteomyelitisnon-billable header
- M86.8Other osteomyelitisnon-billable header
- M86.9Osteomyelitis, unspecified