ICD-10-CM Codes
M00-M99 Diseases of the musculoskeletal system and connective tissue
M45-M49 Spondylopathies
M45- Ankylosing spondylitis

2019 ICD-10-CM Diagnosis Code M45.6

Ankylosing spondylitis lumbar region

2016

2017

2018

2019

Billable/Specific Code

M45.6 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2019 edition of ICD-10-CM M45.6 became effective on October 1, 2018.
This is the American ICD-10-CM version of M45.6 - other international versions of ICD-10 M45.6 may differ.

The following code(s) above M45.6 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to M45.6:

M00-M99
2019 ICD-10-CM Range M00-M99
Diseases of the musculoskeletal system and connective tissue
Note
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Type 2 Excludes
- arthropathic psoriasis (L40.5-)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- compartment syndrome (traumatic) (T79.A-)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Diseases of the musculoskeletal system and connective tissue
M45
ICD-10-CM Diagnosis Code M45
Ankylosing spondylitis
Applicable To
- Rheumatoid arthritis of spine
Type 1 Excludes
- arthropathy in Reiter's disease (M02.3-)
- juvenile (ankylosing) spondylitis (M08.1)
Type 2 Excludes
- Behçet's disease (M35.2)
Ankylosing spondylitis

Approximate Synonyms

Ankylosing spondylitis of lumbar spine

ICD-10-CM M45.6 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):

545 Connective tissue disorders with mcc
546 Connective tissue disorders with cc
547 Connective tissue disorders without cc/mcc

Convert M45.6 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change

Diagnosis Index entries containing back-references to M45.6:

Spondylitis (chronic) - see also Spondylopathy, inflammatory
- ankylosing (chronic) M45.9
  ICD-10-CM Diagnosis Code M45.9
  Ankylosing spondylitis of unspecified sites in spine
  2016 2017 2018 2019 Billable/Specific Code
  - lumbar region M45.6

ICD-10-CM Codes Adjacent To M45.6

M43.8X8 …… sacral and sacrococcygeal region

M43.8X9 …… site unspecified

M43.9 Deforming dorsopathy, unspecified

M45 Ankylosing spondylitis

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

M45.4 Ankylosing spondylitis of thoracic 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

M46 Other inflammatory spondylopathies

M46.0 Spinal enthesopathy

M46.00 …… site unspecified

M46.01 …… occipito-atlanto-axial region

M46.02 …… cervical region

M46.03 …… cervicothoracic region

M46.04 …… thoracic region

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2019 ICD-10-CM Diagnosis Code M45.6

Ankylosing spondylitis lumbar region

Diseases of the musculoskeletal system and connective tissue

Ankylosing spondylitis

Ankylosing spondylitis of unspecified sites in spine