ICD-10-CM category
M85 Other disorders of bone density and structure
M85 is a category, not a billable code. Report one of the 169 complete codes below.
M85.0…
24 codes
- M85.00Fibrous dysplasia (monostotic), unspecified site
- M85.011Fibrous dysplasia (monostotic), right shoulder
- M85.012Fibrous dysplasia (monostotic), left shoulder
- M85.019Fibrous dysplasia (monostotic), unspecified shoulder
- M85.021Fibrous dysplasia (monostotic), right upper arm
- M85.022Fibrous dysplasia (monostotic), left upper arm
- M85.029Fibrous dysplasia (monostotic), unspecified upper arm
- M85.031Fibrous dysplasia (monostotic), right forearm
- M85.032Fibrous dysplasia (monostotic), left forearm
- M85.039Fibrous dysplasia (monostotic), unspecified forearm
- M85.041Fibrous dysplasia (monostotic), right hand
- M85.042Fibrous dysplasia (monostotic), left hand
- M85.049Fibrous dysplasia (monostotic), unspecified hand
- M85.051Fibrous dysplasia (monostotic), right thigh
- M85.052Fibrous dysplasia (monostotic), left thigh
- M85.059Fibrous dysplasia (monostotic), unspecified thigh
- M85.061Fibrous dysplasia (monostotic), right lower leg
- M85.062Fibrous dysplasia (monostotic), left lower leg
- M85.069Fibrous dysplasia (monostotic), unspecified lower leg
- M85.071Fibrous dysplasia (monostotic), right ankle and foot
- M85.072Fibrous dysplasia (monostotic), left ankle and foot
- M85.079Fibrous dysplasia (monostotic), unspecified ankle and foot
- M85.08Fibrous dysplasia (monostotic), other site
- M85.09Fibrous dysplasia (monostotic), multiple sites
M85.1…
24 codes
- M85.10Skeletal fluorosis, unspecified site
- M85.111Skeletal fluorosis, right shoulder
- M85.112Skeletal fluorosis, left shoulder
- M85.119Skeletal fluorosis, unspecified shoulder
- M85.121Skeletal fluorosis, right upper arm
- M85.122Skeletal fluorosis, left upper arm
- M85.129Skeletal fluorosis, unspecified upper arm
- M85.131Skeletal fluorosis, right forearm
- M85.132Skeletal fluorosis, left forearm
- M85.139Skeletal fluorosis, unspecified forearm
- M85.141Skeletal fluorosis, right hand
- M85.142Skeletal fluorosis, left hand
- M85.149Skeletal fluorosis, unspecified hand
- M85.151Skeletal fluorosis, right thigh
- M85.152Skeletal fluorosis, left thigh
- M85.159Skeletal fluorosis, unspecified thigh
- M85.161Skeletal fluorosis, right lower leg
- M85.162Skeletal fluorosis, left lower leg
- M85.169Skeletal fluorosis, unspecified lower leg
- M85.171Skeletal fluorosis, right ankle and foot
- M85.172Skeletal fluorosis, left ankle and foot
- M85.179Skeletal fluorosis, unspecified ankle and foot
- M85.18Skeletal fluorosis, other site
- M85.19Skeletal fluorosis, multiple sites
M85.2…
1 code
M85.3…
24 codes
- M85.30Osteitis condensans, unspecified site
- M85.311Osteitis condensans, right shoulder
- M85.312Osteitis condensans, left shoulder
- M85.319Osteitis condensans, unspecified shoulder
- M85.321Osteitis condensans, right upper arm
- M85.322Osteitis condensans, left upper arm
- M85.329Osteitis condensans, unspecified upper arm
- M85.331Osteitis condensans, right forearm
- M85.332Osteitis condensans, left forearm
- M85.339Osteitis condensans, unspecified forearm
- M85.341Osteitis condensans, right hand
- M85.342Osteitis condensans, left hand
- M85.349Osteitis condensans, unspecified hand
- M85.351Osteitis condensans, right thigh
- M85.352Osteitis condensans, left thigh
- M85.359Osteitis condensans, unspecified thigh
- M85.361Osteitis condensans, right lower leg
- M85.362Osteitis condensans, left lower leg
- M85.369Osteitis condensans, unspecified lower leg
- M85.371Osteitis condensans, right ankle and foot
- M85.372Osteitis condensans, left ankle and foot
- M85.379Osteitis condensans, unspecified ankle and foot
- M85.38Osteitis condensans, other site
- M85.39Osteitis condensans, multiple sites
M85.4…
23 codes
- M85.40Solitary bone cyst, unspecified site
- M85.411Solitary bone cyst, right shoulder
- M85.412Solitary bone cyst, left shoulder
- M85.419Solitary bone cyst, unspecified shoulder
- M85.421Solitary bone cyst, right humerus
- M85.422Solitary bone cyst, left humerus
- M85.429Solitary bone cyst, unspecified humerus
- M85.431Solitary bone cyst, right ulna and radius
- M85.432Solitary bone cyst, left ulna and radius
- M85.439Solitary bone cyst, unspecified ulna and radius
- M85.441Solitary bone cyst, right hand
- M85.442Solitary bone cyst, left hand
- M85.449Solitary bone cyst, unspecified hand
- M85.451Solitary bone cyst, right pelvis
- M85.452Solitary bone cyst, left pelvis
- M85.459Solitary bone cyst, unspecified pelvis
- M85.461Solitary bone cyst, right tibia and fibula
- M85.462Solitary bone cyst, left tibia and fibula
- M85.469Solitary bone cyst, unspecified tibia and fibula
- M85.471Solitary bone cyst, right ankle and foot
- M85.472Solitary bone cyst, left ankle and foot
- M85.479Solitary bone cyst, unspecified ankle and foot
- M85.48Solitary bone cyst, other site
M85.5…
24 codes
- M85.50Aneurysmal bone cyst, unspecified site
- M85.511Aneurysmal bone cyst, right shoulder
- M85.512Aneurysmal bone cyst, left shoulder
- M85.519Aneurysmal bone cyst, unspecified shoulder
- M85.521Aneurysmal bone cyst, right upper arm
- M85.522Aneurysmal bone cyst, left upper arm
- M85.529Aneurysmal bone cyst, unspecified upper arm
- M85.531Aneurysmal bone cyst, right forearm
- M85.532Aneurysmal bone cyst, left forearm
- M85.539Aneurysmal bone cyst, unspecified forearm
- M85.541Aneurysmal bone cyst, right hand
- M85.542Aneurysmal bone cyst, left hand
- M85.549Aneurysmal bone cyst, unspecified hand
- M85.551Aneurysmal bone cyst, right thigh
- M85.552Aneurysmal bone cyst, left thigh
- M85.559Aneurysmal bone cyst, unspecified thigh
- M85.561Aneurysmal bone cyst, right lower leg
- M85.562Aneurysmal bone cyst, left lower leg
- M85.569Aneurysmal bone cyst, unspecified lower leg
- M85.571Aneurysmal bone cyst, right ankle and foot
- M85.572Aneurysmal bone cyst, left ankle and foot
- M85.579Aneurysmal bone cyst, unspecified ankle and foot
- M85.58Aneurysmal bone cyst, other site
- M85.59Aneurysmal bone cyst, multiple sites
M85.6…
24 codes
- M85.60Other cyst of bone, unspecified site
- M85.611Other cyst of bone, right shoulder
- M85.612Other cyst of bone, left shoulder
- M85.619Other cyst of bone, unspecified shoulder
- M85.621Other cyst of bone, right upper arm
- M85.622Other cyst of bone, left upper arm
- M85.629Other cyst of bone, unspecified upper arm
- M85.631Other cyst of bone, right forearm
- M85.632Other cyst of bone, left forearm
- M85.639Other cyst of bone, unspecified forearm
- M85.641Other cyst of bone, right hand
- M85.642Other cyst of bone, left hand
- M85.649Other cyst of bone, unspecified hand
- M85.651Other cyst of bone, right thigh
- M85.652Other cyst of bone, left thigh
- M85.659Other cyst of bone, unspecified thigh
- M85.661Other cyst of bone, right lower leg
- M85.662Other cyst of bone, left lower leg
- M85.669Other cyst of bone, unspecified lower leg
- M85.671Other cyst of bone, right ankle and foot
- M85.672Other cyst of bone, left ankle and foot
- M85.679Other cyst of bone, unspecified ankle and foot
- M85.68Other cyst of bone, other site
- M85.69Other cyst of bone, multiple sites
M85.8…
24 codes
- M85.80Other specified disorders of bone density and structure, unspecified site
- M85.811Other specified disorders of bone density and structure, right shoulder
- M85.812Other specified disorders of bone density and structure, left shoulder
- M85.819Other specified disorders of bone density and structure, unspecified shoulder
- M85.821Other specified disorders of bone density and structure, right upper arm
- M85.822Other specified disorders of bone density and structure, left upper arm
- M85.829Other specified disorders of bone density and structure, unspecified upper arm
- M85.831Other specified disorders of bone density and structure, right forearm
- M85.832Other specified disorders of bone density and structure, left forearm
- M85.839Other specified disorders of bone density and structure, unspecified forearm
- M85.841Other specified disorders of bone density and structure, right hand
- M85.842Other specified disorders of bone density and structure, left hand
- M85.849Other specified disorders of bone density and structure, unspecified hand
- M85.851Other specified disorders of bone density and structure, right thigh
- M85.852Other specified disorders of bone density and structure, left thigh
- M85.859Other specified disorders of bone density and structure, unspecified thigh
- M85.861Other specified disorders of bone density and structure, right lower leg
- M85.862Other specified disorders of bone density and structure, left lower leg
- M85.869Other specified disorders of bone density and structure, unspecified lower leg
- M85.871Other specified disorders of bone density and structure, right ankle and foot
- M85.872Other specified disorders of bone density and structure, left ankle and foot
- M85.879Other specified disorders of bone density and structure, unspecified ankle and foot
- M85.88Other specified disorders of bone density and structure, other site
- M85.89Other specified disorders of bone density and structure, multiple sites
M85.9…
1 code
Outside the US? M85 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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