2021

  1. ICD-10-CM Codes
    2. ›
  2. M00-M99 Diseases of the musculoskeletal system and connective tissue
    3. ›
  3. M45-M49 Spondylopathies
    4. ›
  4. M46- Other inflammatory spondylopathies
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code M46.45

2021 ICD-10-CM Diagnosis Code M46.45

Discitis, unspecified, thoracolumbar region

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • M46.45 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM M46.45 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M46.45 - other international versions of ICD-10 M46.45 may differ.
The following code(s) above M46.45 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 M46.45:
  • M00-M99
    2021 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
Approximate Synonyms
  • Calcification of intervertebral disc - thoracic spine
  • Calcification of thoracic disc
  • Discitis of thoracolumbar spine
  • Thoracolumbar discitis
ICD-10-CM M46.45 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 551 Medical back problems with mcc
  • 552 Medical back problems without mcc

Convert M46.45 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
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to M46.45:
  • Discitis, diskitis M46.40
    ICD-10-CM Diagnosis Code M46.40

    Discitis, unspecified, site unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • thoracolumbar region M46.45

ICD-10-CM Codes Adjacent To M46.45
M46.36 …… lumbar region
M46.37 …… lumbosacral region
M46.38 …… sacral and sacrococcygeal region
M46.39 …… multiple sites in spine
M46.4 Discitis, unspecified
M46.40 …… site unspecified
M46.41 …… occipito-atlanto-axial region
M46.42 …… cervical region
M46.43 …… cervicothoracic region
M46.44 …… thoracic region
M46.45 …… thoracolumbar region
M46.46 …… lumbar region
M46.47 …… lumbosacral region
M46.48 …… sacral and sacrococcygeal region
M46.49 …… multiple sites in spine
M46.5 Other infective spondylopathies
M46.50 …… site unspecified
M46.51 …… occipito-atlanto-axial region
M46.52 …… cervical region
M46.53 …… cervicothoracic region
M46.54 …… thoracic region

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

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