ICD-10-CM 2027 diagnosis code
M86.8XOther osteomyelitis
M86.8X is a header code, so it can't be reported by itself. Choose one of the 10 more specific codes beneath it.
Looking up by condition? See ICD-10 code for Brodie's abscess or disease.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About M86.8X
M86.8X is the ICD-10-CM diagnosis code for other osteomyelitis. It belongs to category M86 (osteomyelitis), block M86-M90 (other osteopathies) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 10 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: M86.8X0 (multiple sites), M86.8X1 (shoulder), M86.8X2 (upper arm), M86.8X3 (forearm), M86.8X4 (hand), M86.8X5 (thigh), M86.8X6 (lower leg), M86.8X7 (ankle and foot) and 2 more.
Use an additional code (B95-B97) to identify infectious agent. Use an additional code to identify major osseous defect, if applicable (M89.7-).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under M86.8X
- M86.8X0Other osteomyelitis, multiple sitesBillable
- M86.8X1Other osteomyelitis, shoulder
- M86.8X2Other osteomyelitis, upper arm
- M86.8X3Other osteomyelitis, forearm
- M86.8X4Other osteomyelitis, hand
- M86.8X5Other osteomyelitis, thigh
- M86.8X6Other osteomyelitis, lower leg
- M86.8X7Other osteomyelitis, ankle and foot
- M86.8X8Other osteomyelitis, other site
- M86.8X9Other osteomyelitis, unspecified sitesBillable
Notes that apply from higher levels
Instructions written at a parent level also apply to M86.8X.
› From M86 Osteomyelitis
Broader instructions also apply from M86-M90 Other osteopathies and Chapter 13: Diseases of the musculoskeletal system and connective tissue.
Alphabetic index entries
3 entriesTerms in the official ICD-10-CM index that lead to M86.8X.
- Abscess (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic) › Brodie's (localized) (chronic)
- Brodie's abscess or disease
- Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis) › specified type NEC
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about M86.8X
Is M86.8X billable?
- No. M86.8X is a header code. Report one of its more specific subcodes instead.