All ICD10 Codes

M86

Non-Billable
ChapterM00–M99
Rankcategory
Official Description

Osteomyelitis

Use a more specific code (1 billable, 8 non-billable)
M86.0Acute hematogenous osteomyelitishas subcodesM86.1Other acute osteomyelitishas subcodesM86.2Subacute osteomyelitishas subcodesM86.3Chronic multifocal osteomyelitishas subcodesM86.4Chronic osteomyelitis with draining sinushas subcodesM86.5Other chronic hematogenous osteomyelitishas subcodesM86.6Other chronic osteomyelitishas subcodesM86.8Other osteomyelitishas subcodesM86.9Osteomyelitis, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

CH13 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

M86-M90 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • postprocedural osteopathies (M96.-)

Instructional Notes

Excludes1(Not coded here. Use a different code.)
Excludes2(Not included here. Code separately if applicable.)
Use Additional Code
  • code (B95-B97) to identify infectious agent
  • code to identify major osseous defect, if applicable (M89.7-)

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M86-M90Other osteopathies (M86-M90)
M86OsteomyelitisNot billable
M86.0Acute hematogenous osteomyelitisSubcodes
M86.1Other acute osteomyelitisSubcodes
M86.2Subacute osteomyelitisSubcodes
M86.3Chronic multifocal osteomyelitisSubcodes
M86.4Chronic osteomyelitis with draining sinusSubcodes
M86.5Other chronic hematogenous osteomyelitisSubcodes
M86.6Other chronic osteomyelitisSubcodes
M86.8Other osteomyelitisSubcodes
M86.9Osteomyelitis, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M86:

blockM86-M90
Other osteopathies (M86-M90)
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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