`M86.49` Chronic osteomyelitis with draining sinus, multiple sites

Billable 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)

730.19 Chronic osteomyelitis, multiple sites (approximate)

Code annotations containing back-references to M86.49

Back-references to M86

Code First: M89.7 Major osseous defect ("osteomyelitis (M86.-)")

Diagnosis Index entries for M86.49

Osteomyelitis (general) (infective) (localized) (neonatal) (purulent) (septic) (staphylococcal) (streptococcal) (suppurative) (with periostitis) › chronic (or old) › with draining sinus › multiple sites

Nearby codes

M86.47 Chronic osteomyelitis with draining sinus, ankle and foot
M86.471 Chronic osteomyelitis with draining sinus, right ankle and foot
M86.472 Chronic osteomyelitis with draining sinus, left ankle and foot
M86.479 Chronic osteomyelitis with draining sinus, unspecified ankle and foot
M86.48 Chronic osteomyelitis with draining sinus, other site
M86.49 Chronic osteomyelitis with draining sinus, multiple sites (this code)
M86.5 Other chronic hematogenous osteomyelitis
M86.50 Other chronic hematogenous osteomyelitis, unspecified site
M86.51 Other chronic hematogenous osteomyelitis, shoulder
M86.511 Other chronic hematogenous osteomyelitis, right shoulder
M86.512 Other chronic hematogenous osteomyelitis, left shoulder