M45.4 - Ankylosing spondylitis of thoracic region

The ICD 10 Code for Ankylosing spondylitis of thoracic region is listed as M45.4.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field	Value
Diagnosis Code:	M45.4
Description:	Ankylosing spondylitis of thoracic region
Diagnostic Related Groups (MS-DRG v30.0)	545 - Connective Tissue Disorders W Mcc 546 - Connective Tissue Disorders W Cc 547 - Connective Tissue Disorders W/o Cc/mcc

Chapter	Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block	Spondylopathies (M45-M49)
Parent	M45 - Ankylosing spondylitis
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code:	720.0 - Ankylosing spondylitis (approximate)
ICD-10-CM Siblings (same level / similar specificity) of M45.4:
M45.0 - Ankylosing spondylitis of multiple sites in spine
M45.1 - Ankylosing spondylitis of occipito-atlanto-axial region
M45.2 - Ankylosing spondylitis of cervical region
M45.3 - Ankylosing spondylitis of cervicothoracic region
M45.5 - Ankylosing spondylitis of thoracolumbar region
M45.6 - Ankylosing spondylitis lumbar region
M45.7 - Ankylosing spondylitis of lumbosacral region
M45.8 - Ankylosing spondylitis sacral and sacrococcygeal region
M45.9 - Ankylosing spondylitis of unspecified sites in spine