M86

Non-billable

Osteomyelitis

M86 is the ICD-10-CM code for Osteomyelitis. It is a non-billable category code — use a more specific child code such as M86.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
9
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Excludes1 — not 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-)

Frequently asked questions

What is ICD-10 code M86?
M86 is the ICD-10-CM code for "Osteomyelitis". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M86 a billable code?
No — M86 is a non-billable header code. Use a more specific child code (such as M86.0) for billing.
What are the subcodes of M86?
M86 has 9 more specific child codes, including M86.0, M86.1, M86.2.
What is excluded from M86?
Excludes1 (not coded here): osteomyelitis due to:; echinococcus (B67.2); gonococcus (A54.43); salmonella (A02.24).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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