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ICD-10-CM 2027 diagnosis code

M41.12Adolescent idiopathic scoliosis

Not billable — use a more specific code

M41.12 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it.

Code last changed in FY2024 (effective October 1, 2023). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About M41.12

M41.12 is the ICD-10-CM diagnosis code for adolescent idiopathic scoliosis. It belongs to category M41 (scoliosis), block M40-M43 (deforming dorsopathies) and chapter 13 (diseases of the musculoskeletal system and connective tissue). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

Within M41.1 (juvenile and adolescent idiopathic scoliosis), M41.12 is specifically for adolescent idiopathic scoliosis. Related codes cover juvenile idiopathic scoliosis (M41.11).

To report this condition, pick the subcode that matches the documentation: M41.122 (cervical region), M41.123 (cervicothoracic region), M41.124 (thoracic region), M41.125 (thoracolumbar region), M41.126 (lumbar region), M41.127 (lumbosacral region) and M41.129 (site unspecified).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2024 (title revised).

Specific codes under M41.12

Notes that apply from higher levels

Instructions written at a parent level also apply to M41.12.

› From M41 Scoliosis
Includes
  • kyphoscoliosis
Excludes1
  • congenital scoliosis NOS (Q67.5)
  • congenital scoliosis due to bony malformation (Q76.3)
  • postural congenital scoliosis (Q67.5)
  • kyphoscoliotic heart disease (I27.1)
Excludes2
  • postprocedural scoliosis (M96.89)
  • postradiation scoliosis (M96.5)

Broader instructions also apply from Chapter 13: Diseases of the musculoskeletal system and connective tissue.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2024 (effective 10/1/2023): Title revised — was “Adolescent scoliosis”

Common questions about M41.12

Is M41.12 billable?

No. M41.12 is a header code. Report one of its more specific subcodes instead.