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ICD-10-CM Codes
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M00-M99
Diseases of the musculoskeletal system and connective tissue
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M80-M85
Disorders of bone density and structure
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M85-
Other disorders of bone density and structure
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2021 ICD-10-CM Diagnosis Code M85.8
2021 ICD-10-CM Diagnosis Code M85.8
Other specified disorders of bone density and structure
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
- M85.8 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2021 edition of ICD-10-CM M85.8 became effective on October 1, 2020.
- This is the American ICD-10-CM version of M85.8 - other international versions of ICD-10 M85.8 may differ.
Applicable To- Hyperostosis of bones, except skull
- Osteosclerosis, acquired
Type 1 ExcludesType 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 M85.8. 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.
- diffuse idiopathic skeletal hyperostosis [DISH] (
ICD-10-CM Diagnosis Code M48.1
Ankylosing hyperostosis [Forestier]
2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
Applicable To- Diffuse idiopathic skeletal hyperostosis [DISH]
M48.1) - osteosclerosis congenita (
ICD-10-CM Diagnosis Code Q77.4
Achondroplasia
2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
Applicable To- Hypochondroplasia
- Osteosclerosis congenita
Q77.4) - osteosclerosis fragilitas (generalista) (
ICD-10-CM Diagnosis Code Q78.2
Osteopetrosis
2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
Applicable To- Albers-Schönberg syndrome
- Osteosclerosis NOS
Q78.2) - osteosclerosis myelofibrosis (
ICD-10-CM Diagnosis Code D75.81
Myelofibrosis
2016 2017 2018 2019 2020 2021 Billable/Specific Code Manifestation Code
Applicable To- Myelofibrosis NOS
- Secondary myelofibrosis NOS
Code First- the underlying disorder, such as:
- malignant neoplasm of breast (C50.-)
Type 1 Excludes- acute myelofibrosis (C94.4-)
- idiopathic myelofibrosis (D47.1)
- leukoerythroblastic anemia (D61.82)
- myelofibrosis with myeloid metaplasia (D47.4)
- myelophthisic anemia (D61.82)
- myelophthisis (D61.82)
- primary myelofibrosis (D47.1)
Use Additional- code, if applicable, for associated therapy-related myelodysplastic syndrome (D46.-)
D75.81)
The following code(s) above
M85.8 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
M85.8:
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
- 2021 (effective 10/1/2020): No change
- Borderline
- Disorder (of) - see also Disease
- bone M89.9
ICD-10-CM Diagnosis Code M89.9
Disorder of bone, unspecified
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- density and structure M85.9
ICD-10-CM Diagnosis Code M85.9
Disorder of bone density and structure, unspecified
2016 2017 2018 2019 2020 2021 Billable/Specific Code
- Osteopenia M85.8-
- Osteosclerosis Q78.2
ICD-10-CM Diagnosis Code Q78.2
Osteopetrosis
2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
Applicable To- Albers-Schönberg syndrome
- Osteosclerosis NOS
ICD-10-CM Codes Adjacent To M85.8
M85.66 Other cyst of bone, lower leg
M85.661 Other cyst of bone, right lower leg
M85.662 Other cyst of bone, left lower leg
M85.669 Other cyst of bone, unspecified lower leg
M85.67 Other cyst of bone, ankle and foot
M85.671 Other cyst of bone, right ankle and foot
M85.672 Other cyst of bone, left ankle and foot
M85.679 Other cyst of bone, unspecified ankle and foot
M85.8
Other specified disorders of bone density and structure
M85.81 Other specified disorders of bone density and structure, shoulder
M85.811 Other specified disorders of bone density and structure, right shoulder
M85.812 Other specified disorders of bone density and structure, left shoulder
M85.819 Other specified disorders of bone density and structure, unspecified shoulder
M85.82 Other specified disorders of bone density and structure, upper arm
M85.821 Other specified disorders of bone density and structure, right upper arm
M85.822 Other specified disorders of bone density and structure, left upper arm
M85.829 Other specified disorders of bone density and structure, unspecified upper arm
M85.83 Other specified disorders of bone density and structure, forearm
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.