ICD-10-CM › M00-M99 › M86-M90 › M86.6 Other chronic osteomyelitis › M86.66
Other chronic osteomyelitis, tibia and fibula
Not billableICD-10-CM diagnosis code.
This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.
Submit one of these 3 more specific codes instead:
What has happened to this code
Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2012 Added to the draft code set draft Other chronic osteomyelitis, tibia and fibula
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from M86 Osteomyelitis
Excludes1 - never coded here
- osteomyelitis due to:
- echinococcus (B67.2)
- gonococcus (A54.43)
- salmonella (A02.24)
Excludes2 - not included here
- ostemyelitis of:
- orbit (H05.0-)
- petrous bone (H70.2-)
- vertebra (M46.2-)
Use additional code
- code (B95-B97) to identify infectious agent
- code to identify major osseous defect, if applicable (M89.7-)
Inherited from the M86-M90 section Other osteopathies (M86-M90)
Excludes1 - never coded here
- postprocedural osteopathies (M96.-)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Osteitis
- Osteopathy
- Endosteitis
- Periostitis
- Sequestration
- Abscess > serous
- Dactylitis > bone
- Sequestrum > bone
- Ganglion > periosteal
- Formation > sequestrum in bone
- Abscess > bone > chronic or old
- Infection, infected, infective > bone
- Suppuration, suppurative > pericranial
- Inflammation, inflamed, inflammatory > bone
- Abscess > periosteum, periosteal > with osteomyelitis > chronic
- Inflammation, inflamed, inflammatory > orbit > acute > periostitis
- Osteomyelitis > chronic > tibia
- Osteomyelitis > chronic > fibula
Codes in the same group
| Code | Description | Status |
|---|---|---|
| M86.60 | Other chronic osteomyelitis, unspecified site | Valid |
| M86.61 | Other chronic osteomyelitis, shoulder | Not billable |
| M86.62 | Other chronic osteomyelitis, humerus | Not billable |
| M86.63 | Other chronic osteomyelitis, radius and ulna | Not billable |
| M86.64 | Other chronic osteomyelitis, hand | Not billable |
| M86.65 | Other chronic osteomyelitis, thigh | Not billable |
| M86.67 | Other chronic osteomyelitis, ankle and foot | Not billable |
| M86.68 | Other chronic osteomyelitis, other site | Valid |
| M86.69 | Other chronic osteomyelitis, multiple sites | Valid |