M86.9
BillableOsteomyelitis, unspecified
Osteomyelitis, unspecified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Infection of bone NOS
- Periostitis without osteomyelitis
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- •postprocedural osteopathiesM96
- osteomyelitis due to:
- •echinococcusB67.2
- •gonococcusA54.43
- •salmonellaA02.24
Excludes 2
Conditions not included here, but the patient may have both
- •arthropathic psoriasisL40.5
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •compartment syndrome (traumatic)A-)T79
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- ostemyelitis of:
- •orbitH05.0
- •petrous boneH70.2
- •vertebraM46.2
Use Additional Code
Additional codes that should follow this code
Related Codes(8)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(280)
SNOMED CT
- Osteitis of multiple sites7127005
- Osteomyelitis of pelvic region8872002
- Osteitis of shoulder region15604000
- Osteomyelitis of forearm17028003
- Osteomyelitis of lower leg21120002
- Osteitis of hand21555006
- Periostitis of forearm23640001
- Osteitis of lower leg26831007
- Pedal osteitis36963005
- Periosteitis fibrosa41910004
- Periostitis41910004
- Osteomyelitis of shoulder region53453008
- OM - Osteomyelitis60168000
- OSTM - Osteomyelitis60168000
- Osteomyelitis60168000
- Pyogenic inflammation of bone60168000
- SAPHO - Synovitis, acne, pustulosis palmaris, hyperostosis, osteomyelitis syndrome60684003
- SAPHO syndrome60684003
- Synovitis acne pustulosis hyperostosis osteomyelitis syndrome60684003
- Bacterial osteomyelitis61011009
- Osteomyelitis of hand61585002
- Periostitis of hand63475008
- Osteomyelitis of upper arm75286007
- Osteomyelitis of multiple sites91538002
- Osteomyelitis of cranium95423008
- Osteomyelitis of skull95423008
- Osteomyelitis of facial bone109303003
- Osteomyelitis of frontal bone109304009
- Osteomyelitis of zygomatic bone109305005
- Osteomyelitis of sphenoid bone109306006
- Osteomyelitis of temporal bone109307002
- Bone infection111253001
- Infection of bone111253001
- Infection by Pasteurella multocida197718007
- Infection caused by Pasteurella multocida197718007
- Infection of clavicle203222000
- Osteomyelitis of clavicle203222000
- Infection of scapula203223005
- Infection of bone of upper arm203224004
- Infection of humerus203224004
- Infection of radius203225003
- Infection of ulna203226002
- Infection of carpal bone203227006
- Infection of metacarpal203228001
- Infection of phalanx of finger or thumb203229009
- Infection of pelvis203230004
- Infection of femur203231000
- Infection of patella203232007
- Infection of fibula203234008
- Infection of calcaneum203235009
- Infection of talus203236005
- Infection of metatarsal203238006
- Infection of phalanx of toe203239003
- Infection of multiple bones203240001
- Periostitis without osteomyelitis203245006
- Periostitis of forearm without osteomyelitis203249000
- Periostitis of hand without osteomyelitis203250000
- Periostitis without osteomyelitis of cervical spine203256006
- Periostitis without osteomyelitis of thoracic spine203257002
- Periostitis without osteomyelitis of lumbar spine203258007
- Periostitis without osteomyelitis of sacral vertebra203259004
- Periostitis without osteomyelitis of sacrum203259004
- Periostitis without osteomyelitis of coccyx203260009
- Bone inflammatory disease274144001
- Inflammation of bone274144001
- Inflammatory disorder of bone274144001
- Osteitis274144001
- Enthesitis359643005
- Osteomyelitis of upper limb371551001
- Bone abscess409778008
- Osteomyelitis caused by Staphylococcus aureus428783003
- Infection of bone of ankle and/or foot442449006
- Infection of bone of forearm444786007
- Infection of bone of radius and/or ulna444786007
- Infection of bone of hand445012003
- Infection of bone of lower leg445215005
- Infection of bone of tibia and/or fibula445215005
- Osteomyelitis of tibia445408000
- Osteomyelitis of ankle700076004
- Osteomyelitis of midfoot700439005
- Osteomyelitis of hindfoot700440007
- Osteomyelitis of forefoot705059000
- Osteomyelitis caused by Pasteurella multocida721102001
- Pasteurella multocida osteomyelitis721102001
- Osteitis of pelvis783340009
- Osteomyelitis of sternum846604005
- Sternal osteomyelitis846604005
- Coccidioidomycosis of bone1163139006
- Infection of bone caused by Coccidioides1163139006
- Infected bone plate1204353000
- Infection of bone associated with bone plate1204353000
- Infected bone screw1204354006
- Infection of bone associated with bone screw1204354006
- Tenoperiostitis1217320008
- Cranial cerebrospinal fluid fistula1259545004
- Cranial cerebrospinal fluid leak1259545004
- Leak of cranial cerebrospinal fluid1259545004
- Cranial cerebrospinal fluid leak due to osteomyelitis1259603009
- Leak of cranial cerebrospinal fluid due to osteomyelitis1259603009
- Inflammation of left femur15698281000119101
- Osteitis of left femur15698281000119101
- Inflammation of right femur15698201000119109
- Osteitis of right femur15698201000119109
- Osteomyelitis due to type 1 diabetes mellitus72041000119103
- Osteomyelitis of left ankle1077791000119108
- Osteomyelitis of left femur1077741000119100
- Osteomyelitis of left foot1077811000119107
- Osteomyelitis of left hand1077721000119106
- Osteomyelitis of left shoulder1077661000119109
- Osteomyelitis of left tibia1077761000119101
- Osteomyelitis of right ankle1077801000119109
- Osteomyelitis of right femur1077731000119109
- Osteomyelitis of right foot1077821000119100
- Osteomyelitis of right hand1077711000119104
- Osteomyelitis of right shoulder1077651000119107
- Osteomyelitis of right tibia1077751000119103
UMLS
- Bone InfectionC2242472
- Bone InfectionsC2242472
- Bone infectionC2242472
- Bone infection NOSC2242472
- Infection of boneC2242472
- Infection of bone (disorder)C2242472
- Infection of bone NOSC2242472
- Unspecified infection of boneC2242472
- Unspecified infection of bone, site unspecifiedC2242472
- bone infectionC2242472
- bone infectionsC2242472
- bones infectionC2242472
- bones infectionsC2242472
- OM - OsteomyelitisC0029443
- OSTM - OsteomyelitisC0029443
- OsteomyelitidesC0029443
- OsteomyelitisC0029443
- Osteomyelitis (disorder)C0029443
- Osteomyelitis NOSC0029443
- Osteomyelitis, unspecifiedC0029443
- Pyogenic inflammation of boneC0029443
- Unspecified osteomyelitisC0029443
- Unspecified osteomyelitis, site unspecifiedC0029443
- a bacterial infection of the bone or bone marrowC0029443
- osteomyelitisC0029443
- unspecified osteomyelitisC0029443
- Periostitis without mention of osteomyelitisC0264069
- Periostitis without osteomyelitisC0264069
- Periostitis without osteomyelitis (disorder)C0264069
- Periostosis without osteomyelitisC0264069
- Periostosis without osteomyelitis (disorder)C0264069
Clinical Terms
- Periostitis without osteomyelitis of lumbar spine
- Infection of scapula
- Osteomyelitis of cranium
- Osteomyelitis caused by Pasteurella multocida
- Periostosis without osteomyelitis
- Osteomyelitis of midfoot
- Infection of femur
- Periostitis without osteomyelitis of sacral vertebra
- Osteomyelitis of left foot
- Osteomyelitis of lower leg
- Pasteurella multocida osteomyelitis
- Osteomyelitis of right shoulder
- Periostitis of hand without osteomyelitis
- Infected bone screw
- Osteomyelitis of clavicle
- Osteomyelitis caused by Staphylococcus aureus
- Leak of cranial cerebrospinal fluid due to osteomyelitis
- Periostitis of forearm
- Infection of phalanx of toe
- Unspecified infection of bone, site unspecified
- Infection of multiple bones
- Synovitis acne pustulosis hyperostosis osteomyelitis syndrome
- Osteomyelitis (disorder)
- Osteomyelitis of left ankle
- Osteomyelitis of temporal bone
- Periostitis of hand
- Osteomyelitis of right foot
- Osteomyelitis of skull
- Unspecified infection of bone
- Osteitis of pelvis
- Osteomyelitis of zygomatic bone
- Infection of bone of lower leg
- Osteomyelitis of pelvic region
- Periostitis without osteomyelitis (disorder)
- Bone abscess
- Infection by Pasteurella multocida
- Infection of pelvis
- Bone infection
- Bacterial osteomyelitis
- SAPHO syndrome
- Osteomyelitis of left hand
- Infection of bone associated with bone screw
- Infection of bone of radius and/or ulna
- Infection of clavicle
- Unspecified osteomyelitis
- Osteomyelitides
- bones infections
- Periostitis without mention of osteomyelitis
- Osteomyelitis NOS
- Infection of bone associated with bone plate
- Infection of bone caused by Coccidioides
- Osteomyelitis of left femur
- bones infection
- Infection of calcaneum
- Infection of humerus
- Infection of talus
- Infection of fibula
- a bacterial infection of the bone or bone marrow
- Infection of metatarsal
- Periostitis without osteomyelitis of cervical spine
- Periostosis without osteomyelitis (disorder)
- Osteomyelitis of upper limb
- Sternal osteomyelitis
- Infection of radius
- Osteomyelitis of frontal bone
- Infection of bone of ankle and/or foot
- Infection of bone NOS
- Osteomyelitis of forearm
- Osteomyelitis due to type 1 diabetes mellitus
- Osteitis of hand
- bone infections
- Pedal osteitis
- Osteitis of multiple sites
- Osteomyelitis of tibia
- Inflammation of bone
- Osteomyelitis of facial bone
- Enthesitis
- SAPHO - Synovitis, acne, pustulosis palmaris, hyperostosis, osteomyelitis syndrome
- Unspecified osteomyelitis, site unspecified
- Inflammation of left femur
- Infected bone plate
- Cranial cerebrospinal fluid fistula
- Infection of metacarpal
- Cranial cerebrospinal fluid leak due to osteomyelitis
- OSTM - Osteomyelitis
- Periostitis of forearm without osteomyelitis
- Osteomyelitis of sphenoid bone
- OM - Osteomyelitis
- Infection caused by Pasteurella multocida
- Osteitis
- Osteomyelitis of right hand
- Periostitis
- Infection of carpal bone
- Coccidioidomycosis of bone
- Periosteitis fibrosa
- Infection of ulna
- Periostitis without osteomyelitis of thoracic spine
- Infection of bone
- Osteomyelitis of multiple sites
- Infection of phalanx of finger or thumb
- Inflammatory disorder of bone
- Infection of bone of tibia and/or fibula
- Cranial cerebrospinal fluid leak
- Inflammation of right femur
- Periostitis without osteomyelitis
- Bone inflammatory disease
- Periostitis without osteomyelitis of sacrum
- Osteomyelitis of right tibia
- Osteomyelitis of hand
- Pyogenic inflammation of bone
- Tenoperiostitis
- Osteomyelitis of right ankle
- Osteitis of lower leg
- Osteitis of left femur
- Osteomyelitis of shoulder region
- Infection of bone of upper arm
- Infection of bone of forearm
- Osteomyelitis of forefoot
- Osteomyelitis of ankle
- Osteomyelitis of sternum
- Osteitis of shoulder region
- Periostitis without osteomyelitis of coccyx
- Infection of bone of hand
- Osteomyelitis of upper arm
- Osteitis of right femur
- Infection of patella
- Osteomyelitis of hindfoot
- Leak of cranial cerebrospinal fluid
- Osteomyelitis of right femur
- Osteomyelitis of left shoulder
- Osteomyelitis of left tibia
- Infection of bone (disorder)
- Bone infection NOS
Frequently Asked Questions
What is the ICD-10 code for osteomyelitis, unspecified?
The ICD-10-CM code for osteomyelitis, unspecified is M86.9. The full clinical description is "Osteomyelitis, unspecified". M86.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code M86.9 mean?
ICD-10-CM code M86.9 represents “Osteomyelitis, unspecified”. It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a billable/specific code that can be used on a claim.
Is M86.9 a billable code?
Yes, M86.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is M86.9 in?
M86.9 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M86.9?
M86.9 has Excludes1 notes indicating codes that cannot be used together with it, including: postprocedural osteopathies (M96.-); osteomyelitis due to:; echinococcus (B67.2); and 2 more.
Are additional codes required with M86.9?
Yes, when using M86.9, also report: code (B95-B97) to identify infectious agent.
What SNOMED CT codes does M86.9 map to?
M86.9 maps to 89 SNOMED CT concepts: 61011009, 409778008, 111253001, 274144001, 1163139006, and 84 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for M86.9?
M86.9 is linked to 3 UMLS Concept Unique Identifiers: C2242472, C0029443, C0264069. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M86.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like osteomyelitis, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of M86.9?
M86.9 maps to the ICD-11 code: FB84.Z (Osteomyelitis or osteitis, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.