M43

Non-billable

Other deforming dorsopathies

M43 is the ICD-10-CM code for Other deforming dorsopathies. It is a non-billable category code — use a more specific child code such as M43.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
9
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Excludes1 — not coded here

  • 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.-)

Frequently asked questions

What is ICD-10 code M43?
M43 is the ICD-10-CM code for "Other deforming dorsopathies". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M43 a billable code?
No — M43 is a non-billable header code. Use a more specific child code (such as M43.0) for billing.
What are the subcodes of M43?
M43 has 9 more specific child codes, including M43.0, M43.1, M43.2.
What is excluded from M43?
Excludes1 (not coded here): congenital spondylolysis and spondylolisthesis (Q76.2); hemivertebra (Q76.3-Q76.4); Klippel-Feil syndrome (Q76.1); lumbarization and sacralization (Q76.4).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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