All ICD10 Codes

M85.8

Non-Billable
ChapterM00–M99
Ranksubcategory
Official Description

Other specified disorders of bone density and structure

Use a more specific code (3 billable, 7 non-billable)
M85.80Other specified disorders of bone density and structure, unspecified siteM85.81Other specified disorders of bone density and structure, shoulderhas subcodesM85.82Other specified disorders of bone density and structure, upper armhas subcodesM85.83Other specified disorders of bone density and structure, forearmhas subcodesM85.84Other specified disorders of bone density and structure, handhas subcodesM85.85Other specified disorders of bone density and structure, thighhas subcodesM85.86Other specified disorders of bone density and structure, lower leghas subcodesM85.87Other specified disorders of bone density and structure, ankle and foothas subcodesM85.88Other specified disorders of bone density and structure, other siteM85.89Other specified disorders of bone density and structure, multiple sites
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99).

Instructional Notes

Includes
  • Hyperostosis of bones, except skull
  • Osteosclerosis, acquired
Excludes1(Not coded here. Use a different code.)
  • diffuse idiopathic skeletal hyperostosis [DISH] (M48.1)
  • osteosclerosis congenita (Q77.4)
  • osteosclerosis fragilitas (generalista) (Q78.2)
  • osteosclerosis myelofibrosis (D75.81)
General instructions are available for the parent sections:
View CH13 NotesView M85 Notes

Clinical Hierarchy

BillableHas subcodes
CH13Diseases of the musculoskeletal system and connective tissue (M00-M99)
M80-M85Disorders of bone density and structure (M80-M85)
M85Other disorders of bone density and structure
M85.8Other specified disorders of bone density and structureNot billable
M85.80Other specified disorders of bone density and structure, unspecified siteBillable
M85.81Other specified disorders of bone density and structure, shoulderSubcodes
M85.82Other specified disorders of bone density and structure, upper armSubcodes
M85.83Other specified disorders of bone density and structure, forearmSubcodes
M85.84Other specified disorders of bone density and structure, handSubcodes
M85.85Other specified disorders of bone density and structure, thighSubcodes
M85.86Other specified disorders of bone density and structure, lower legSubcodes
M85.87Other specified disorders of bone density and structure, ankle and footSubcodes
M85.88Other specified disorders of bone density and structure, other siteBillable
M85.89Other specified disorders of bone density and structure, multiple sitesBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to M85.8:

categoryM85
Other disorders of bone density and structure
View context instructions
chapterCH13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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