M43.8X
Other specified deforming dorsopathies
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 20 never code together
M43code
Excludes1
- congenital spondylolysis and spondylolisthesis (Q76.2)Q76.2
- hemivertebra (Q76.3-Q76.4)Q76.3-Q76.4
- Klippel-Feil syndrome (Q76.1)Q76.1
- lumbarization and sacralization (Q76.4)Q76.4
- platyspondylisis (Q76.4)Q76.4
- spina bifida occulta (Q76.0)Q76.0
- spinal curvature in osteoporosis (M80.-)M80.-
- spinal curvature in Paget's disease of bone [osteitis deformans] (M88.-)M88.-
M00-M99chapter
Excludes2
- arthropathic psoriasis (L40.5-)L40.5-
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- compartment syndrome (traumatic) (T79.A-)T79.A-
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 1
M00-M99chapter
Notes
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Index entries leading here 1 filed at M43.8
The index files this at M43.8. The tabular
extends it — laterality, staging, or the 7th character — so these entries
lead to the family rather than to M43.8X exactly.
- Angulation
- sacrum (acquired) M43.8
Subordinate codes 9
M43.8X1 Oth deforming dorsopathies, occipito-atlanto-axial region M43.8X2 Other specified deforming dorsopathies, cervical region M43.8X3 Oth deforming dorsopathies, cervicothoracic region M43.8X4 Other specified deforming dorsopathies, thoracic region M43.8X5 Other specified deforming dorsopathies, thoracolumbar region M43.8X6 Other specified deforming dorsopathies, lumbar region M43.8X7 Other specified deforming dorsopathies, lumbosacral region M43.8X8 Oth deforming dorsopathies, sacral and sacrococcygeal region M43.8X9 Other specified deforming dorsopathies, site unspecified
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.