ICD-10-CM 2027
ICD-10 code for scoliosis
From the official ICD-10-CM alphabetic index entry “Scoliosis (acquired) (postural)”. Page updated September 29, 2026.
About coding scoliosis
The ICD-10-CM code for scoliosis is M41.9 (Scoliosis, unspecified). The official index lists 74 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M41.9.
Within M41, choose M41.9 (unspecified) only when documentation doesn't support a more specific option: infantile idiopathic scoliosis (M41.0), juvenile and adolescent idiopathic scoliosis (M41.1), other idiopathic scoliosis (M41.2), Thoracogenic scoliosis (M41.3), neuromuscular scoliosis (M41.4), other secondary scoliosis (M41.5) and other forms of scoliosis (M41.8).
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 scoliosis codes (official index)
- adolescent (idiopathic)
- congenital Q67.5 — Congenital deformity of spine
- due to bony malformation Q76.3 — Congenital scoliosis due to congenital bony malformation
- failure of segmentation (hemivertebra) Q76.3 — Congenital scoliosis due to congenital bony malformation
- hemivertebra fusion Q76.3 — Congenital scoliosis due to congenital bony malformation
- postural Q67.5 — Congenital deformity of spine
- degenerative M41.5 — Other secondary scoliosis
- idiopathic M41.20 — Other idiopathic scoliosis, site unspecified
- adolescent M41.129 — Adolescent idiopathic scoliosis, site unspecified
- cervical region M41.122 — Adolescent idiopathic scoliosis, cervical region
- cervicothoracic region M41.123 — Adolescent idiopathic scoliosis, cervicothoracic region
- lumbar region M41.126 — Adolescent idiopathic scoliosis, lumbar region
- lumbosacral region M41.127 — Adolescent idiopathic scoliosis, lumbosacral region
- thoracic region M41.124 — Adolescent idiopathic scoliosis, thoracic region
- thoracolumbar region M41.125 — Adolescent idiopathic scoliosis, thoracolumbar region
- cervical region M41.22 — Other idiopathic scoliosis, cervical region
- cervicothoracic region M41.23 — Other idiopathic scoliosis, cervicothoracic region
- infantile M41.00 — Infantile idiopathic scoliosis, site unspecified
- cervical region M41.02 — Infantile idiopathic scoliosis, cervical region
- cervicothoracic region M41.03 — Infantile idiopathic scoliosis, cervicothoracic region
- lumbar region M41.06 — Infantile idiopathic scoliosis, lumbar region
- lumbosacral region M41.07 — Infantile idiopathic scoliosis, lumbosacral region
- sacrococcygeal region M41.08 — Infantile idiopathic scoliosis, sacral and sacrococcygeal region
- thoracic region M41.04 — Infantile idiopathic scoliosis, thoracic region
- thoracolumbar region M41.05 — Infantile idiopathic scoliosis, thoracolumbar region
- juvenile M41.119 — Juvenile idiopathic scoliosis, site unspecified
- cervical region M41.112 — Juvenile idiopathic scoliosis, cervical region
- cervicothoracic region M41.113 — Juvenile idiopathic scoliosis, cervicothoracic region
- lumbar region M41.116 — Juvenile idiopathic scoliosis, lumbar region
- lumbosacral region M41.117 — Juvenile idiopathic scoliosis, lumbosacral region
- thoracic region M41.114 — Juvenile idiopathic scoliosis, thoracic region
- thoracolumbar region M41.115 — Juvenile idiopathic scoliosis, thoracolumbar region
- lumbar region M41.26 — Other idiopathic scoliosis, lumbar region
- lumbosacral region M41.27 — Other idiopathic scoliosis, lumbosacral region
- thoracic region M41.24 — Other idiopathic scoliosis, thoracic region
- thoracolumbar region M41.25 — Other idiopathic scoliosis, thoracolumbar region
- infantile
- neuromuscular M41.40 — Neuromuscular scoliosis, site unspecified
- 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
- paralytic
- postprocedural M96.89 — Other intraoperative and postprocedural complications and disorders of the musculoskeletal system
- postradiation therapy M96.5 — Postradiation scoliosis
- rachitic (late effect or sequelae) E64.3 — Sequelae of rickets
- cervical region E64.3 — Sequelae of rickets
- cervicothoracic region E64.3 — Sequelae of rickets
- lumbar region E64.3 — Sequelae of rickets
- lumbosacral region E64.3 — Sequelae of rickets
- multiple sites E64.3 — Sequelae of rickets
- occipito-atlanto-axial region E64.3 — Sequelae of rickets
- sacrococcygeal region E64.3 — Sequelae of rickets
- thoracic region E64.3 — Sequelae of rickets
- thoracolumbar region E64.3 — Sequelae of rickets
- sciatic M54.4 — Lumbago with sciatica
- secondary (to) NEC M41.50 — Other secondary scoliosis, site unspecified
- cerebral palsy, Friedreich's ataxia, poliomyelitis, neuromuscular disorders
- cervical region M41.52 — Other secondary scoliosis, cervical region
- cervicothoracic region M41.53 — Other secondary scoliosis, cervicothoracic region
- lumbar region M41.56 — Other secondary scoliosis, lumbar region
- lumbosacral region M41.57 — Other secondary scoliosis, lumbosacral region
- thoracic region M41.54 — Other secondary scoliosis, thoracic region
- thoracolumbar region M41.55 — Other secondary scoliosis, thoracolumbar region
- specified form NEC M41.80 — Other forms of scoliosis, site unspecified
- cervical region M41.82 — Other forms of scoliosis, cervical region
- cervicothoracic region M41.83 — Other forms of scoliosis, cervicothoracic region
- lumbar region M41.86 — Other forms of scoliosis, lumbar region
- lumbosacral region M41.87 — Other forms of scoliosis, lumbosacral region
- thoracic region M41.84 — Other forms of scoliosis, thoracic region
- thoracolumbar region M41.85 — Other forms of scoliosis, thoracolumbar region
- thoracogenic M41.30 — Thoracogenic scoliosis, site unspecified
- thoracic region M41.34 — Thoracogenic scoliosis, thoracic region
- thoracolumbar region M41.35 — Thoracogenic scoliosis, thoracolumbar region
- tuberculous A18.01 — Tuberculosis of spine
Common questions about scoliosis ICD-10 codes
What is the ICD-10 code for scoliosis?
- M41.9 — Scoliosis, unspecified. More specific codes apply when the documentation supports them: Q67.5, Q76.3, Q76.3, Q76.3 and others below.
What is the ICD-10 code for congenital scoliosis?
- Q67.5 — Congenital deformity of spine.
What is the ICD-10 code for degenerative scoliosis?
- M41.5 — Other secondary scoliosis (header code; choose a more specific subcode).
What is the ICD-10 code for idiopathic scoliosis?
- M41.20 — Other idiopathic scoliosis, site unspecified.
What is the ICD-10 code for neuromuscular scoliosis?
- M41.40 — Neuromuscular scoliosis, site unspecified.
What is the ICD-10 code for postprocedural scoliosis?
- M96.89 — Other intraoperative and postprocedural complications and disorders of the musculoskeletal system.
What is the ICD-10 code for postradiation therapy scoliosis?
- M96.5 — Postradiation scoliosis.
Is M41.9 billable?
- Yes. M41.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M41.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M41.9 as a principal diagnosis.
Is M41.9 a CC or MCC?
- No. M41.9 is neither a CC nor an MCC under MS-DRG v44.0.