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ICD-10-CM 2027

ICD-10 code for Pott's puffy tumor

M86.8X8

Other osteomyelitis, other site

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Tumor › Pott's puffy”. Page updated September 29, 2026.

About coding Pott's puffy tumor

The ICD-10-CM code for Pott's puffy tumor is M86.8X8 (Other osteomyelitis, other site).

Within M86.8X, choose M86.8X8 (other site) only when documentation doesn't support a more specific option: multiple sites (M86.8X0), shoulder (M86.8X1), upper arm (M86.8X2), forearm (M86.8X3), hand (M86.8X4), thigh (M86.8X5), lower leg (M86.8X6), ankle and foot (M86.8X7) and 1 more.

To report this condition, pick the subcode that matches the documentation: M86.8X80 (skull), M86.8X81 (sinuses) and M86.8X89 (site).

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

Common questions about Pott's puffy tumor ICD-10 codes

What is the ICD-10 code for Pott's puffy tumor?

M86.8X8 — Other osteomyelitis, other site (a header code; report a more specific subcode).

Is M86.8X8 billable?

No. M86.8X8 is a header code. Report one of its more specific subcodes instead.