2020 ICD-10-CM Diagnosis Code M85

Other disorders of bone density and structure

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • M85 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM M85 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of M85 - other international versions of ICD-10 M85 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as M85. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • osteogenesis imperfecta (
    ICD-10-CM Diagnosis Code Q78.0

    Osteogenesis imperfecta

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Fragilitas ossium
    • Osteopsathyrosis
    Q78.0
    )
  • osteopetrosis (
    ICD-10-CM Diagnosis Code Q78.2

    Osteopetrosis

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Albers-Schönberg syndrome
    • Osteosclerosis NOS
    Q78.2
    )
  • osteopoikilosis (
    ICD-10-CM Diagnosis Code Q78.8

    Other specified osteochondrodysplasias

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Osteopoikilosis
    Q78.8
    )
  • polyostotic fibrous dysplasia (
    ICD-10-CM Diagnosis Code Q78.1

    Polyostotic fibrous dysplasia

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Albright(-McCune)(-Sternberg) syndrome
    Q78.1
    )
The following code(s) above M85 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to M85:
  • M00-M99
    2020 ICD-10-CM Range M00-M99

    Diseases of the musculoskeletal system and connective tissue

    Note
    • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
    Type 2 Excludes
    • arthropathic psoriasis (L40.5-)
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • compartment syndrome (traumatic) (T79.A-)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the musculoskeletal system and connective tissue
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To M85
M84.862 Other disorders of continuity of bone, left tibia
M84.863 Other disorders of continuity of bone, right fibula
M84.864 Other disorders of continuity of bone, left fibula
M84.869 Other disorders of continuity of bone, unspecified tibia and fibula
M84.87 Other disorders of continuity of bone, ankle and foot
M84.871 Other disorders of continuity of bone, right ankle and foot
M84.872 Other disorders of continuity of bone, left ankle and foot
M84.879 Other disorders of continuity of bone, unspecified ankle and foot
M84.88 …… other site
M84.9 Disorder of continuity of bone, unspecified
M85 Other disorders of bone density and structure
M85.0 Fibrous dysplasia (monostotic)
M85.00 …… unspecified site
M85.01 Fibrous dysplasia (monostotic), shoulder
M85.011 Fibrous dysplasia (monostotic), right shoulder
M85.012 Fibrous dysplasia (monostotic), left shoulder
M85.019 Fibrous dysplasia (monostotic), unspecified shoulder
M85.02 Fibrous dysplasia (monostotic), upper arm
M85.021 Fibrous dysplasia (monostotic), right upper arm
M85.022 Fibrous dysplasia (monostotic), left upper arm
M85.029 Fibrous dysplasia (monostotic), unspecified upper arm

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.