10ICD Code Hub

M86.4

Header — not billable

Chronic osteomyelitis with draining sinus

The ICD-10 code for chronic osteomyelitis with draining sinus is M86.4.

M86.4 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 10 more specific codes below.

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under M86.4

Related codes in this category