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ICD-10-CM 2027

ICD-10 code for neuromuscular scoliosis

M41.40

Neuromuscular scoliosis, site unspecified

✓ Billable / specific

From the official ICD-10-CM alphabetic index entry “Scoliosis (acquired) (postural) › neuromuscular”. Page updated September 29, 2026.

About coding neuromuscular scoliosis

The ICD-10-CM code for neuromuscular scoliosis is M41.40 (Neuromuscular scoliosis, site unspecified). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M41.40.

Within M41.4, choose M41.40 (site unspecified) only when documentation doesn't support a more specific option: occipito-atlanto-axial region (M41.41), cervical region (M41.42), cervicothoracic region (M41.43), thoracic region (M41.44), thoracolumbar region (M41.45), lumbar region (M41.46) and lumbosacral region (M41.47).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 456 (Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection with MCC, relative weight 7.6244), DRG 457 (Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection with CC, relative weight 5.3668), DRG 458 (Spinal Fusion Except Cervical with Spinal Curvature, Malignancy, or Infection without CC/MCC, relative weight 4.0388), DRG 551 (Medical Back Problems with MCC, relative weight 1.6358) and DRG 552 (Medical Back Problems without MCC, relative weight 0.9584), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

More specific neuromuscular scoliosis codes (official index)

  • cervical region M41.42 — Neuromuscular scoliosis, cervical region
  • cervicothoracic region M41.43 — Neuromuscular scoliosis, cervicothoracic region
  • lumbar region M41.46 — Neuromuscular scoliosis, lumbar region
  • lumbosacral region M41.47 — Neuromuscular scoliosis, lumbosacral region
  • occipito-atlanto-axial region M41.41 — Neuromuscular scoliosis, occipito-atlanto-axial region
  • thoracic region M41.44 — Neuromuscular scoliosis, thoracic region
  • thoracolumbar region M41.45 — Neuromuscular scoliosis, thoracolumbar region

Common questions about neuromuscular scoliosis ICD-10 codes

What is the ICD-10 code for neuromuscular scoliosis?

M41.40 — Neuromuscular scoliosis, site unspecified. More specific codes apply when the documentation supports them: M41.42, M41.43, M41.46, M41.47 and others below.

What is the ICD-10 code for cervical region neuromuscular scoliosis?

M41.42 — Neuromuscular scoliosis, cervical region.

What is the ICD-10 code for cervicothoracic region neuromuscular scoliosis?

M41.43 — Neuromuscular scoliosis, cervicothoracic region.

What is the ICD-10 code for lumbar region neuromuscular scoliosis?

M41.46 — Neuromuscular scoliosis, lumbar region.

What is the ICD-10 code for lumbosacral region neuromuscular scoliosis?

M41.47 — Neuromuscular scoliosis, lumbosacral region.

What is the ICD-10 code for occipito-atlanto-axial region neuromuscular scoliosis?

M41.41 — Neuromuscular scoliosis, occipito-atlanto-axial region.

What is the ICD-10 code for thoracic region neuromuscular scoliosis?

M41.44 — Neuromuscular scoliosis, thoracic region.

Is M41.40 billable?

Yes. M41.40 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can M41.40 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict M41.40 as a principal diagnosis.

Is M41.40 a CC or MCC?

No. M41.40 is neither a CC nor an MCC under MS-DRG v44.0.