U.S. ICD-10-CM · FY 2027

M43 ICD-10-CM Code: Other deforming dorsopathies

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

M43

Other deforming dorsopathies

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where M43 sits

  1. 1

    Chapter 13

    Diseases of the musculoskeletal system and connective tissue (M00-M99)

  2. 2

    Section

    Deforming dorsopathies (M40-M43)

  3. 3

    Category M43

    Other deforming dorsopathies

  4. 4

    Code M43

    Other deforming dorsopathies

More specific choices

Codes under M43

M43 is a non-billable category. Choose the child code that best matches the documented diagnosis.

M43.0

Spondylolysis

M43.1

Spondylolisthesis

M43.2

Fusion of spine

M43.3

Recurrent atlantoaxial dislocation with myelopathy

M43.4

Other recurrent atlantoaxial dislocation

M43.5

Other recurrent vertebral dislocation

M43.6

Torticollis

M43.8

Other specified deforming dorsopathies

M43.9

Deforming dorsopathy, unspecified

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for M43.

Code first

No “code first” instruction is listed for M43.

Use additional code

No “use additional code” instruction is listed for M43.

Excludes1

Conditions that should not be reported together with this code.

  • 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

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for M43.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code M43 mean?

M43 is the FY 2027 U.S. ICD-10-CM code for “Other deforming dorsopathies.”

Is M43 a billable or specific ICD-10-CM code?

No. M43 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is M43 located in ICD-10-CM?

M43 is listed in Chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99), within Deforming dorsopathies (M40-M43) (M40–M43), under category M43, Other deforming dorsopathies.

What coding notes are listed for M43?

No inclusion terms are listed for M43 in this reference record. No code-first instruction is listed. Excludes1 notes: 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.-). No Excludes2 note is listed.

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