ICD-10-CM 2027
ICD-10 code for kyphosis
From the official ICD-10-CM alphabetic index entry “Kyphosis, kyphotic (acquired)”. Page updated September 29, 2026.
About coding kyphosis
The ICD-10-CM code for kyphosis is M40.209 (Unspecified kyphosis, site unspecified). The official index lists 30 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M40.209.
Within M40.20, choose M40.209 (site unspecified) only when documentation doesn't support a more specific option: cervical region (M40.202), cervicothoracic region (M40.203), thoracic region (M40.204) and thoracolumbar region (M40.205).
Code first: underlying disease.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific kyphosis codes (official index)
- cervical region M40.202 — Unspecified kyphosis, cervical region
- cervicothoracic region M40.203 — Unspecified kyphosis, cervicothoracic region
- congenital Q76.419 — Congenital kyphosis, unspecified region
- cervical region Q76.412 — Congenital kyphosis, cervical region
- cervicothoracic region Q76.413 — Congenital kyphosis, cervicothoracic region
- occipito-atlanto-axial region Q76.411 — Congenital kyphosis, occipito-atlanto-axial region
- thoracic region Q76.414 — Congenital kyphosis, thoracic region
- thoracolumbar region Q76.415 — Congenital kyphosis, thoracolumbar region
- Morquio-Brailsford type (spinal) E76.219 — Morquio mucopolysaccharidoses, unspecified
- postlaminectomy M96.3 — Postlaminectomy kyphosis
- postradiation therapy M96.2 — Postradiation kyphosis
- postural (adolescent) M40.00 — Postural kyphosis, site unspecified
- cervicothoracic region M40.03 — Postural kyphosis, cervicothoracic region
- thoracic region M40.04 — Postural kyphosis, thoracic region
- thoracolumbar region M40.05 — Postural kyphosis, thoracolumbar region
- secondary NEC M40.10 — Other secondary kyphosis, site unspecified
- cervical region M40.12 — Other secondary kyphosis, cervical region
- cervicothoracic region M40.13 — Other secondary kyphosis, cervicothoracic region
- thoracic region M40.14 — Other secondary kyphosis, thoracic region
- thoracolumbar region M40.15 — Other secondary kyphosis, thoracolumbar region
- sequelae of rickets E64.3 — Sequelae of rickets
- specified type NEC M40.299 — Other kyphosis, site unspecified
- cervical region M40.292 — Other kyphosis, cervical region
- cervicothoracic region M40.293 — Other kyphosis, cervicothoracic region
- thoracic region M40.294 — Other kyphosis, thoracic region
- thoracolumbar region M40.295 — Other kyphosis, thoracolumbar region
- syphilitic, congenital A50.56 — Late congenital syphilitic osteochondropathy
- thoracic region M40.204 — Unspecified kyphosis, thoracic region
- thoracolumbar region M40.205 — Unspecified kyphosis, thoracolumbar region
- tuberculous A18.01 — Tuberculosis of spine
Common questions about kyphosis ICD-10 codes
What is the ICD-10 code for kyphosis?
- M40.209 — Unspecified kyphosis, site unspecified. More specific codes apply when the documentation supports them: M40.202, M40.203, Q76.419, Q76.412 and others below.
What is the ICD-10 code for cervical region kyphosis?
- M40.202 — Unspecified kyphosis, cervical region.
What is the ICD-10 code for cervicothoracic region kyphosis?
- M40.203 — Unspecified kyphosis, cervicothoracic region.
What is the ICD-10 code for congenital kyphosis?
- Q76.419 — Congenital kyphosis, unspecified region.
What is the ICD-10 code for morquio-brailsford type kyphosis?
- E76.219 — Morquio mucopolysaccharidoses, unspecified.
What is the ICD-10 code for postlaminectomy kyphosis?
- M96.3 — Postlaminectomy kyphosis.
What is the ICD-10 code for postradiation therapy kyphosis?
- M96.2 — Postradiation kyphosis.
Is M40.209 billable?
- Yes. M40.209 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M40.209 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M40.209 as a principal diagnosis.
Is M40.209 a CC or MCC?
- No. M40.209 is neither a CC nor an MCC under MS-DRG v44.0.