M86.8X7: Other osteomyelitis, ankle and foot

No longer billable · FY2027

Not billable: this is a header. Use one of the more specific codes below.

• No longer billable from October 1, 2026: it became a header for more specific codes: M86.8X71, M86.8X72, M86.8X79.

Code breakdown

Coding notes

Inclusion terms (from M86.8)

• Brodie's abscess

Excludes1 (from M86)

• osteomyelitis due to:
• echinococcus (B67.2)
• gonococcus (A54.43)
• salmonella (A02.24)

Excludes2 (from M86)

• ostemyelitis of:
• orbit (H05.0-)
• petrous bone (H70.2-)
• vertebra (M46.2-)

Use additional code (from M86)

• code (B95-B97) to identify infectious agent
• code to identify major osseous defect, if applicable (M89.7-)

Codes under M86.8X7

• M86.8X71 Other osteomyelitis, right ankle and foot
• M86.8X72 Other osteomyelitis, left ankle and foot
• M86.8X79 Other osteomyelitis, unspecified ankle and foot

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All FY2027 ICD-10-CM changes

ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.