ICD-10-CM 2027
ICD-10 code for thoracic region kyphosis
From the official ICD-10-CM alphabetic index entry “Kyphosis, kyphotic (acquired) › thoracic region”. Page updated September 29, 2026.
About coding thoracic region kyphosis
The ICD-10-CM code for thoracic region kyphosis is M40.204 (Unspecified kyphosis, thoracic region).
Within M40.20 (unspecified kyphosis), M40.204 is specifically for unspecified kyphosis, thoracic region. Related codes cover cervical region (M40.202), cervicothoracic region (M40.203), thoracolumbar region (M40.205) and site unspecified (M40.209).
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.
Common questions about thoracic region kyphosis ICD-10 codes
What is the ICD-10 code for thoracic region kyphosis?
- M40.204 — Unspecified kyphosis, thoracic region.
Is M40.204 billable?
- Yes. M40.204 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M40.204 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M40.204 as a principal diagnosis.
Is M40.204 a CC or MCC?
- No. M40.204 is neither a CC nor an MCC under MS-DRG v44.0.