ICD-10-CM › M86 › M86.3 M86.30 Chronic multifocal osteomyelitis, unspecified siteBillable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.
Applies from M86 Osteomyelitis Excludes1 (never code together) 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-) Risk adjustment (HCC) CMS-HCC V28: HCC 92 — Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis CMS-HCC V22: HCC 39 — Bone/Joint/Muscle Infections/Necrosis ESRD V24: HCC 39 MS-DRG index Defines the logic of DRG(s) 456-458 in MDC 08.
Approximate ICD-9-CM (GEMs) 730.10 Chronic osteomyelitis, site unspecified (approximate)Medicare Code Edits (MCE v43.1 (April 2026)) Unspecified code (laterality) : Unspecified codes for which a more specific code identifying laterality (right, left, bilateral) exists within the same code family.Code annotations containing back-references to M86.30 Back-references to M86 Code First: M89.7 Diagnosis Index entries for M86.30 Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis) › chronic (or old) › hematogenous NEC › multifocal Nearby codes M86.272M86.279M86.28M86.29M86.3M86.30 Chronic multifocal osteomyelitis, unspecified site (this code)M86.31M86.311M86.312M86.319M86.32