M43 Other deforming dorsopathies

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Other deforming dorsopathies is M43 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
M40-M43: Deforming dorsopathies (M40-M43)
Category M43
58 codes (50 billable)
FY2026 Status
Stable since FY2024
Excludes1
Not coded here. These conditions should NOT be coded together with M43.
  • 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.-)

Official Coding Guidelines

Osteoporosis without pathological fracture (M81)

Category M81, Osteoporosis without current pathological fracture, is for use for patients with osteoporosis who do not currently have a pathologic fracture due to the osteoporosis, even if they have had a fracture in the past. For patients with a history of osteoporosis fractures, status code Z87.310, Personal history of (healed) osteoporosis fracture, should follow the code from M81.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.13.d.1
Osteoporosis with current pathological fracture (M80)

Category M80, Osteoporosis with current pathological fracture, is for patients who have a current pathologic fracture at the time of an encounter. The codes under M80 identify the site of the fracture. A code from category M80, not a traumatic fracture code, should be used for any patient with known osteoporosis who suffers a fracture, even if the patient had a minor fall or trauma, if that fall or trauma would not usually break a normal, healthy bone.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.13.d.2

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference M43 with the canonical source and edition:

M43 — Other deforming dorsopathies. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/M43

Canonical URL: https://icd10codingpro.com/codes/M43

Related Codes

All Codes in M43

Every most-specific code under M43 Other deforming dorsopathies (50 codes):

Show the complete M43 code list
M43.00 Spondylolysis, site unspecified M43.01 Spondylolysis, occipito-atlanto-axial region M43.02 Spondylolysis, cervical region M43.03 Spondylolysis, cervicothoracic region M43.04 Spondylolysis, thoracic region M43.05 Spondylolysis, thoracolumbar region M43.06 Spondylolysis, lumbar region M43.07 Spondylolysis, lumbosacral region M43.08 Spondylolysis, sacral and sacrococcygeal region M43.09 Spondylolysis, multiple sites in spine M43.10 Spondylolisthesis, site unspecified M43.11 Spondylolisthesis, occipito-atlanto-axial region M43.12 Spondylolisthesis, cervical region M43.13 Spondylolisthesis, cervicothoracic region M43.14 Spondylolisthesis, thoracic region M43.15 Spondylolisthesis, thoracolumbar region M43.16 Spondylolisthesis, lumbar region M43.17 Spondylolisthesis, lumbosacral region M43.18 Spondylolisthesis, sacral and sacrococcygeal region M43.19 Spondylolisthesis, multiple sites in spine M43.20 Fusion of spine, site unspecified M43.21 Fusion of spine, occipito-atlanto-axial region M43.22 Fusion of spine, cervical region M43.23 Fusion of spine, cervicothoracic region M43.24 Fusion of spine, thoracic region M43.25 Fusion of spine, thoracolumbar region M43.26 Fusion of spine, lumbar region M43.27 Fusion of spine, lumbosacral region M43.28 Fusion of spine, sacral and sacrococcygeal region M43.3 Recurrent atlantoaxial dislocation with myelopathy M43.4 Other recurrent atlantoaxial dislocation M43.5X2 Other recurrent vertebral dislocation, cervical region M43.5X3 Other recurrent vertebral dislocation, cervicothoracic region M43.5X4 Other recurrent vertebral dislocation, thoracic region M43.5X5 Other recurrent vertebral dislocation, thoracolumbar region M43.5X6 Other recurrent vertebral dislocation, lumbar region M43.5X7 Other recurrent vertebral dislocation, lumbosacral region M43.5X8 Other recurrent vertebral dislocation, sacral and sacrococcygeal region M43.5X9 Other recurrent vertebral dislocation, site unspecified M43.6 Torticollis M43.8X1 Other specified deforming dorsopathies, occipito-atlanto-axial region M43.8X2 Other specified deforming dorsopathies, cervical region M43.8X3 Other specified 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 Other specified deforming dorsopathies, sacral and sacrococcygeal region M43.8X9 Other specified deforming dorsopathies, site unspecified M43.9 Deforming dorsopathy, unspecified
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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