Alphabetic Index FY2027

M89.4

Other hypertrophic osteoarthropathy

FY2027Chapter 13: Diseases of the musculoskeletal system and connective tissue/M86–M90 Other osteopathies

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

M89.4 is a non-billable ICD-10-CM code header for other hypertrophic osteoarthropathy. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are M89.40 Other hypertrophic osteoarthropathy, unspecified site; M89.41 Other hypertrophic osteoarthropathy, shoulder; M89.42 Other hypertrophic osteoarthropathy, upper arm; M89.43 Other hypertrophic osteoarthropathy, forearm and 6 more. Its coding notes include 1 Excludes1 entry and 10 Excludes2 entries.

Excludes1

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

Also from chapter/block level (1 note)
Inherited from M86–M90 Other osteopathies
  • postprocedural osteopathies (M96.-)

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)

Inclusion terms

Conditions classified to this code.

This code
  • Marie-Bamberger disease
  • Pachydermoperiostosis

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

More specific codes under M89.4 10