ICD-10-CM category M86: Osteomyelitis

Category M86 is a heading in chapter 13 (Diseases of the musculoskeletal system and connective tissue (M00-M99)), section Other osteopathies (M86-M90). It is not billable; report one of the 195 complete codes below.

Notes that apply to every M86 code

Excludes1 (never coded together): osteomyelitis due to:
echinococcus (B67.2)
gonococcus (A54.43)
salmonella (A02.24)
Excludes2 (not part of this condition, may be coded together): 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-)

Billable codes in M86

Billable FY2027 ICD-10-CM codes in category M86
Code	Description
M86.00	Acute hematogenous osteomyelitis, unspecified site
M86.011	Acute hematogenous osteomyelitis, right shoulder
M86.012	Acute hematogenous osteomyelitis, left shoulder
M86.019	Acute hematogenous osteomyelitis, unspecified shoulder
M86.021	Acute hematogenous osteomyelitis, right humerus
M86.022	Acute hematogenous osteomyelitis, left humerus
M86.029	Acute hematogenous osteomyelitis, unspecified humerus
M86.031	Acute hematogenous osteomyelitis, right radius and ulna
M86.032	Acute hematogenous osteomyelitis, left radius and ulna
M86.039	Acute hematogenous osteomyelitis, unspecified radius and ulna
M86.041	Acute hematogenous osteomyelitis, right hand
M86.042	Acute hematogenous osteomyelitis, left hand
M86.049	Acute hematogenous osteomyelitis, unspecified hand
M86.051	Acute hematogenous osteomyelitis, right femur
M86.052	Acute hematogenous osteomyelitis, left femur
M86.059	Acute hematogenous osteomyelitis, unspecified femur
M86.061	Acute hematogenous osteomyelitis, right tibia and fibula
M86.062	Acute hematogenous osteomyelitis, left tibia and fibula
M86.069	Acute hematogenous osteomyelitis, unspecified tibia and fibula
M86.071	Acute hematogenous osteomyelitis, right ankle and foot
M86.072	Acute hematogenous osteomyelitis, left ankle and foot
M86.079	Acute hematogenous osteomyelitis, unspecified ankle and foot
M86.08	Acute hematogenous osteomyelitis, other sites
M86.09	Acute hematogenous osteomyelitis, multiple sites
M86.10	Other acute osteomyelitis, unspecified site
M86.111	Other acute osteomyelitis, right shoulder
M86.112	Other acute osteomyelitis, left shoulder
M86.119	Other acute osteomyelitis, unspecified shoulder
M86.121	Other acute osteomyelitis, right humerus
M86.122	Other acute osteomyelitis, left humerus
M86.129	Other acute osteomyelitis, unspecified humerus
M86.131	Other acute osteomyelitis, right radius and ulna
M86.132	Other acute osteomyelitis, left radius and ulna
M86.139	Other acute osteomyelitis, unspecified radius and ulna
M86.141	Other acute osteomyelitis, right hand
M86.142	Other acute osteomyelitis, left hand
M86.149	Other acute osteomyelitis, unspecified hand
M86.151	Other acute osteomyelitis, right femur
M86.152	Other acute osteomyelitis, left femur
M86.159	Other acute osteomyelitis, unspecified femur
M86.161	Other acute osteomyelitis, right tibia and fibula
M86.162	Other acute osteomyelitis, left tibia and fibula
M86.169	Other acute osteomyelitis, unspecified tibia and fibula
M86.171	Other acute osteomyelitis, right ankle and foot
M86.172	Other acute osteomyelitis, left ankle and foot
M86.179	Other acute osteomyelitis, unspecified ankle and foot
M86.18	Other acute osteomyelitis, other site
M86.19	Other acute osteomyelitis, multiple sites
M86.20	Subacute osteomyelitis, unspecified site
M86.211	Subacute osteomyelitis, right shoulder
M86.212	Subacute osteomyelitis, left shoulder
M86.219	Subacute osteomyelitis, unspecified shoulder
M86.221	Subacute osteomyelitis, right humerus
M86.222	Subacute osteomyelitis, left humerus
M86.229	Subacute osteomyelitis, unspecified humerus
M86.231	Subacute osteomyelitis, right radius and ulna
M86.232	Subacute osteomyelitis, left radius and ulna
M86.239	Subacute osteomyelitis, unspecified radius and ulna
M86.241	Subacute osteomyelitis, right hand
M86.242	Subacute osteomyelitis, left hand
M86.249	Subacute osteomyelitis, unspecified hand
M86.251	Subacute osteomyelitis, right femur
M86.252	Subacute osteomyelitis, left femur
M86.259	Subacute osteomyelitis, unspecified femur
M86.261	Subacute osteomyelitis, right tibia and fibula
M86.262	Subacute osteomyelitis, left tibia and fibula
M86.269	Subacute osteomyelitis, unspecified tibia and fibula
M86.271	Subacute osteomyelitis, right ankle and foot
M86.272	Subacute osteomyelitis, left ankle and foot
M86.279	Subacute osteomyelitis, unspecified ankle and foot
M86.28	Subacute osteomyelitis, other site
M86.29	Subacute osteomyelitis, multiple sites
M86.30	Chronic multifocal osteomyelitis, unspecified site
M86.311	Chronic multifocal osteomyelitis, right shoulder
M86.312	Chronic multifocal osteomyelitis, left shoulder
M86.319	Chronic multifocal osteomyelitis, unspecified shoulder
M86.321	Chronic multifocal osteomyelitis, right humerus
M86.322	Chronic multifocal osteomyelitis, left humerus
M86.329	Chronic multifocal osteomyelitis, unspecified humerus
M86.331	Chronic multifocal osteomyelitis, right radius and ulna
M86.332	Chronic multifocal osteomyelitis, left radius and ulna
M86.339	Chronic multifocal osteomyelitis, unspecified radius and ulna
M86.341	Chronic multifocal osteomyelitis, right hand
M86.342	Chronic multifocal osteomyelitis, left hand
M86.349	Chronic multifocal osteomyelitis, unspecified hand
M86.351	Chronic multifocal osteomyelitis, right femur
M86.352	Chronic multifocal osteomyelitis, left femur
M86.359	Chronic multifocal osteomyelitis, unspecified femur
M86.361	Chronic multifocal osteomyelitis, right tibia and fibula
M86.362	Chronic multifocal osteomyelitis, left tibia and fibula
M86.369	Chronic multifocal osteomyelitis, unspecified tibia and fibula
M86.371	Chronic multifocal osteomyelitis, right ankle and foot
M86.372	Chronic multifocal osteomyelitis, left ankle and foot
M86.379	Chronic multifocal osteomyelitis, unspecified ankle and foot
M86.38	Chronic multifocal osteomyelitis, other site
M86.39	Chronic multifocal osteomyelitis, multiple sites
M86.40	Chronic osteomyelitis with draining sinus, unspecified site
M86.411	Chronic osteomyelitis with draining sinus, right shoulder
M86.412	Chronic osteomyelitis with draining sinus, left shoulder
M86.419	Chronic osteomyelitis with draining sinus, unspecified shoulder
M86.421	Chronic osteomyelitis with draining sinus, right humerus
M86.422	Chronic osteomyelitis with draining sinus, left humerus
M86.429	Chronic osteomyelitis with draining sinus, unspecified humerus
M86.431	Chronic osteomyelitis with draining sinus, right radius and ulna
M86.432	Chronic osteomyelitis with draining sinus, left radius and ulna
M86.439	Chronic osteomyelitis with draining sinus, unspecified radius and ulna
M86.441	Chronic osteomyelitis with draining sinus, right hand
M86.442	Chronic osteomyelitis with draining sinus, left hand
M86.449	Chronic osteomyelitis with draining sinus, unspecified hand
M86.451	Chronic osteomyelitis with draining sinus, right femur
M86.452	Chronic osteomyelitis with draining sinus, left femur
M86.459	Chronic osteomyelitis with draining sinus, unspecified femur
M86.461	Chronic osteomyelitis with draining sinus, right tibia and fibula
M86.462	Chronic osteomyelitis with draining sinus, left tibia and fibula
M86.469	Chronic osteomyelitis with draining sinus, unspecified tibia and fibula
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
M86.50	Other chronic hematogenous osteomyelitis, unspecified site
M86.511	Other chronic hematogenous osteomyelitis, right shoulder
M86.512	Other chronic hematogenous osteomyelitis, left shoulder
M86.519	Other chronic hematogenous osteomyelitis, unspecified shoulder
M86.521	Other chronic hematogenous osteomyelitis, right humerus
M86.522	Other chronic hematogenous osteomyelitis, left humerus
M86.529	Other chronic hematogenous osteomyelitis, unspecified humerus
M86.531	Other chronic hematogenous osteomyelitis, right radius and ulna
M86.532	Other chronic hematogenous osteomyelitis, left radius and ulna
M86.539	Other chronic hematogenous osteomyelitis, unspecified radius and ulna
M86.541	Other chronic hematogenous osteomyelitis, right hand
M86.542	Other chronic hematogenous osteomyelitis, left hand
M86.549	Other chronic hematogenous osteomyelitis, unspecified hand
M86.551	Other chronic hematogenous osteomyelitis, right femur
M86.552	Other chronic hematogenous osteomyelitis, left femur
M86.559	Other chronic hematogenous osteomyelitis, unspecified femur
M86.561	Other chronic hematogenous osteomyelitis, right tibia and fibula
M86.562	Other chronic hematogenous osteomyelitis, left tibia and fibula
M86.569	Other chronic hematogenous osteomyelitis, unspecified tibia and fibula
M86.571	Other chronic hematogenous osteomyelitis, right ankle and foot
M86.572	Other chronic hematogenous osteomyelitis, left ankle and foot
M86.579	Other chronic hematogenous osteomyelitis, unspecified ankle and foot
M86.58	Other chronic hematogenous osteomyelitis, other site
M86.59	Other chronic hematogenous osteomyelitis, multiple sites
M86.60	Other chronic osteomyelitis, unspecified site
M86.611	Other chronic osteomyelitis, right shoulder
M86.612	Other chronic osteomyelitis, left shoulder
M86.619	Other chronic osteomyelitis, unspecified shoulder
M86.621	Other chronic osteomyelitis, right humerus
M86.622	Other chronic osteomyelitis, left humerus
M86.629	Other chronic osteomyelitis, unspecified humerus
M86.631	Other chronic osteomyelitis, right radius and ulna
M86.632	Other chronic osteomyelitis, left radius and ulna
M86.639	Other chronic osteomyelitis, unspecified radius and ulna
M86.641	Other chronic osteomyelitis, right hand
M86.642	Other chronic osteomyelitis, left hand
M86.649	Other chronic osteomyelitis, unspecified hand
M86.651	Other chronic osteomyelitis, right thigh
M86.652	Other chronic osteomyelitis, left thigh
M86.659	Other chronic osteomyelitis, unspecified thigh
M86.661	Other chronic osteomyelitis, right tibia and fibula
M86.662	Other chronic osteomyelitis, left tibia and fibula
M86.669	Other chronic osteomyelitis, unspecified tibia and fibula
M86.671	Other chronic osteomyelitis, right ankle and foot
M86.672	Other chronic osteomyelitis, left ankle and foot
M86.679	Other chronic osteomyelitis, unspecified ankle and foot
M86.68	Other chronic osteomyelitis, other site
M86.69	Other chronic osteomyelitis, multiple sites
M86.8X0	Other osteomyelitis, multiple sites
M86.8X11	Other osteomyelitis, right shoulder
M86.8X12	Other osteomyelitis, left shoulder
M86.8X19	Other osteomyelitis, unspecified shoulder
M86.8X21	Other osteomyelitis, right upper arm
M86.8X22	Other osteomyelitis, left upper arm
M86.8X29	Other osteomyelitis, unspecified upper arm
M86.8X31	Other osteomyelitis, right forearm
M86.8X32	Other osteomyelitis, left forearm
M86.8X39	Other osteomyelitis, unspecified forearm
M86.8X41	Other osteomyelitis, right hand
M86.8X42	Other osteomyelitis, left hand
M86.8X49	Other osteomyelitis, unspecified hand
M86.8X51	Other osteomyelitis, right thigh
M86.8X52	Other osteomyelitis, left thigh
M86.8X59	Other osteomyelitis, unspecified thigh
M86.8X61	Other osteomyelitis, right lower leg
M86.8X62	Other osteomyelitis, left lower leg
M86.8X69	Other osteomyelitis, unspecified lower leg
M86.8X71	Other osteomyelitis, right ankle and foot
M86.8X72	Other osteomyelitis, left ankle and foot
M86.8X79	Other osteomyelitis, unspecified ankle and foot
M86.8X80	Other osteomyelitis, skull
M86.8X81	Other osteomyelitis, face and sinuses
M86.8X89	Other osteomyelitis, other site
M86.8X9	Other osteomyelitis, unspecified sites
M86.9	Osteomyelitis, unspecified

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.

ICD-10-CM FY2027 tabular order file (category titles)
Version FY2027 · effective 2026-10-01 · file icd10cm_order_2027.txtSHA-256 38981fb2c1226e2b…
ICD-10-CM FY2027 tabular list (chapter titles and ranges)
Version FY2027 · effective 2026-10-01 · file 2027-code-tables-tabular-index.zipSHA-256 37baa476323714be…
ICD-10-CM FY2027 code descriptions addenda (codes added, deleted and revised)
Version FY2027 · effective 2026-10-01 · file icd10cm_codes_addenda_2027.txtSHA-256 cfba025073235af4…
ICD-10 MS-DRG Definitions Manual v44 (text)
Version v44 · effective 2026-10-01 · file fy2027-fr-icd10-ms-drg-definitions-manual-files-v44.zipSHA-256 ae4f6c11727fe91f…
IPPS FY2027 Tables 6A-6K: new, invalid and revised ICD-10-CM/PCS codes, CC/MCC list changes and CC exclusions
Version FY2027 (final rule; not reissued by CN3) · effective 2026-10-01 · file fy2027-ipps-fr-tables-6a-6k.zipSHA-256 ca0af87b0869a405…
ICD-10-CM FY2027 POA-exempt codes (full list, additions, deletions and revisions)
Version FY2027 · effective 2026-10-01 · file 2027-poa-exempt-codes.zipSHA-256 03f55091045024d0…
ICD-10-CM to CMS-HCC V28 mappings, payment year 2027 initial
Version PY2027 initial ICD-10-CM mappings (dates of service 2026) · effective 2027-01-01 · file 2027 Initial ICD-10-CM Mappings.csvSHA-256 9c260b06d0dd2806…
Medicare Coverage Database, current Billing and Coding Articles export
Version MCD release 2026-10-08 · effective 2026-10-04 · file article.csvSHA-256 5e95c4a8ac3664be…

Codes from the FY2027 ICD-10-CM files (all chapters). Report the code that matches the documentation and the Official Guidelines; this list is not coding advice.