ICD-10 Code for Fasciitis
The ICD-10-CM code for fasciitis is M72.9 — Fibroblastic disorder, unspecified. This is the code the Alphabetic Index gives for fasciitis with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
M72.9 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which fasciitis code should you use?
The Alphabetic Index lists 8 codes under Fasciitis. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| diffuse | M35.4 | Diffuse (eosinophilic) fasciitis | |
| infective | M72.8 | Other fibroblastic disorders | |
| necrotizing | M72.6 | Necrotizing fasciitis | |
| nodular | M72.4 | Pseudosarcomatous fibromatosis | |
| perirenal | N13.5 | Crossing vessel and stricture of ureter without hydronephrosis | |
| plantar | M67.A0 | Plantar fasciitis, foot | not billable |
| specified NEC | M72.8 | Other fibroblastic disorders | |
| traumatic | M72.8 | Other fibroblastic disorders |
Fasciitis infective
| necrotizing | M72.6 | Necrotizing fasciitis |
Fasciitis perirenal
| with infection | N13.6 | Pyonephrosis |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources