M43.8X9
Other specified deforming dorsopathies, site unspecified
BillableComplete code, valid to report
M43.8X9 (also written M438X9) is a billable ICD-10-CM diagnosis code for other specified deforming dorsopathies, site unspecified. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 50 codes in category M43 (Other deforming dorsopathies). Its coding notes include 8 Excludes1 entries and 12 Excludes2 entries.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Inherited from M43 Other deforming dorsopathies
- congenital spondylolysis and spondylolisthesis (Q76.2)
- hemivertebra (Q76.3-Q76.4)
- Klippel-Feil syndrome (Q76.1)
- lumbarization and sacralization (Q76.4)
- platyspondylisis (Q76.4)
- spina bifida occulta (Q76.0)
- spinal curvature in osteoporosis (M80.-)
- spinal curvature in Paget's disease of bone [osteitis deformans] (M88.-)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Inherited from M43.8 Other specified deforming dorsopathies
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