M85.829

Other specified disorders of bone density and structure, unspecified upper arm

FY2027Chapter 13: Diseases of the musculoskeletal system and connective tissue/M80–M85 Disorders of bone density and structure

BillableComplete code, valid to report

M85.829 (also written M85829) is a billable ICD-10-CM diagnosis code for other specified disorders of bone density and structure, unspecified upper arm. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 169 codes in category M85 (Other disorders of bone density and structure). Its coding notes include 8 Excludes1 entries and 10 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Inherited from M85.8 Other specified disorders of bone density and structure
  • diffuse idiopathic skeletal hyperostosis [DISH] (M48.1)
  • osteosclerosis congenita (Q77.4)
  • osteosclerosis fragilitas (generalista) (Q78.2)
  • osteosclerosis myelofibrosis (D75.81)
Inherited from M85 Other disorders of bone density and structure
  • osteogenesis imperfecta (Q78.0)
  • osteopetrosis (Q78.2)
  • osteopoikilosis (Q78.8)
  • polyostotic fibrous dysplasia (Q78.1)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (10 notes)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • 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)

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition