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  6. 2024 ICD-10-CM Code M45.A8

2024 ICD-10-CM Diagnosis Code M45.A8

Non-radiographic axial spondyloarthritis of sacral and sacrococcygeal region

ICD-10-CM Code:
M45.A8
ICD-10 Code for:
Non-radiographic axial spondyloarthritis sacr/sacrocygl rgn
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
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Code Classification

  • Diseases of the musculoskeletal system and connective tissue
    (M00–M99)
    • Spondylopathies
      (M45-M49)
      • Ankylosing spondylitis
        (M45)

M45.A8 is a billable diagnosis code used to specify a medical diagnosis of non-radiographic axial spondyloarthritis of sacral and sacrococcygeal region. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Axial spondyloarthritis
  • Non-radiographic axial spondyloarthritis

Clinical Classification

Clinical CategoryCCSR Category CodeInpatient Default CCSROutpatient Default CCSR
Rheumatoid arthritis and related diseaseMUS003N - Not default inpatient assignment for principal diagnosis or first-listed diagnosis.N - Not default outpatient assignment for principal diagnosis or first-listed diagnosis.
Spondylopathies/spondyloarthropathy (including infective)MUS011Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Clinical Information

  • Axial Spondyloarthritis

    a spectrum of chronic inflammatory conditions affecting the axial joints (e.g., spine), characterized by pain, stiffness of joints (ankylosis), reduced mobility and inflammation. when joint inflammation and damage are visible on regular x-rays it is called ankylosing spondylitis; otherwise it is referred to as non-radiographic axial spondyloarthritis. hla-b27 antigen is a biomarker and il-23/il-17 pathway a potential therapeutic target for axial and other related spondyloarthritis.

  • Non-Radiographic Axial Spondyloarthritis

    chronic inflammatory conditions affecting the axial joints which cannot be detectable on x-rays. it is characterized by pain, stiffness of joints and inflammation. non-radiographic axial spondyloarthritis can have symptoms onset before the age of 45 and progress to more severe ankylosing spondylitis over time.

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Replacement Code

M45A8 replaces the following previously assigned ICD-10-CM code(s):

  • M45.8 - Ankylosing spondylitis sacral and sacrococcygeal region

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - Code Added, effective from 10/1/2021 through 9/30/2022

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.