2021 ICD-10-CM Diagnosis Code M48.1

Ankylosing hyperostosis [Forestier]

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • M48.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM M48.1 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of M48.1 - other international versions of ICD-10 M48.1 may differ.
Applicable To
  • Diffuse idiopathic skeletal hyperostosis [DISH]
The following code(s) above M48.1 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 M48.1:
  • 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
Clinical Information
  • A disease of elderly men characterized by large osteophytes that bridge vertebrae and ossification of ligaments and tendon insertions.
  • A rare degenerative disorder that affects the spine. It is characterized by ossification of ligaments resulting in calcifications along the sides of the spinal vertebrae.
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
Code annotations containing back-references to M48.1:
  • Type 1 Excludes: M85.8
    ICD-10-CM Diagnosis Code M85.8

    Other specified disorders of bone density and structure

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Hyperostosis of bones, except skull
    • Osteosclerosis, acquired
    Type 1 Excludes
    • diffuse idiopathic skeletal hyperostosis [DISH] (M48.1)
    • osteosclerosis congenita (Q77.4)
    • osteosclerosis fragilitas (generalista) (Q78.2)
    • osteosclerosis myelofibrosis (D75.81)
ICD-10-CM Codes Adjacent To M48.1
M48.01 …… occipito-atlanto-axial region
M48.02 …… cervical region
M48.03 …… cervicothoracic region
M48.04 …… thoracic region
M48.05 …… thoracolumbar region
M48.06 Spinal stenosis, lumbar region
M48.061 …… without neurogenic claudication
M48.062 …… with neurogenic claudication
M48.07 …… lumbosacral region
M48.08 …… sacral and sacrococcygeal region
M48.1 Ankylosing hyperostosis [Forestier]
M48.10 …… site unspecified
M48.11 …… occipito-atlanto-axial region
M48.12 …… cervical region
M48.13 …… cervicothoracic region
M48.14 …… thoracic region
M48.15 …… thoracolumbar region
M48.16 …… lumbar region
M48.17 …… lumbosacral region
M48.18 …… sacral and sacrococcygeal region
M48.19 …… multiple sites in spine

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