Version 2024

2024 ICD-10-CM Diagnosis Code M99.4

Connective tissue stenosis of neural canal

ICD-10-CM Code:
M99.4
ICD-10 Code for:
Connective tissue stenosis of neural canal
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Diseases of the musculoskeletal system and connective tissue
    (M00–M99)
    • Biomechanical lesions, not elsewhere classified
      (M99)
      • Biomechanical lesions, not elsewhere classified
        (M99)

M99.4 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of connective tissue stenosis of neural canal. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Connective tissue stenosis of neural canal

Non-specific codes like M99.4 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for connective tissue stenosis of neural canal:

  • Use M99.40 for Connective tissue stenosis of neural canal of head region - BILLABLE CODE

  • Use M99.41 for Connective tissue stenosis of neural canal of cervical region - BILLABLE CODE

  • Use M99.42 for Connective tissue stenosis of neural canal of thoracic region - BILLABLE CODE

  • Use M99.43 for Connective tissue stenosis of neural canal of lumbar region - BILLABLE CODE

  • Use M99.44 for Connective tissue stenosis of neural canal of sacral region - BILLABLE CODE

  • Use M99.45 for Connective tissue stenosis of neural canal of pelvic region - BILLABLE CODE

  • Use M99.46 for Connective tissue stenosis of neural canal of lower extremity - BILLABLE CODE

  • Use M99.47 for Connective tissue stenosis of neural canal of upper extremity - BILLABLE CODE

  • Use M99.48 for Connective tissue stenosis of neural canal of rib cage - BILLABLE CODE

  • Use M99.49 for Connective tissue stenosis of neural canal of abdomen and other regions - BILLABLE CODE

Patient Education


Spinal Stenosis

Your spine, or backbone, protects your spinal cord and allows you to stand and bend. Spinal stenosis causes narrowing in your spine. The narrowing puts pressure on your nerves and spinal cord and can cause pain.

Spinal stenosis occurs mostly in people older than 50. Younger people with a spine injury or a narrow spinal canal are also at risk. Diseases such as arthritis and scoliosis can cause spinal stenosis, too. Symptoms might appear gradually or not at all. They include:

  • Pain in your neck or back
  • Numbness, weakness, cramping, or pain in your arms or legs
  • Pain going down the leg
  • Foot problems

Doctors diagnose spinal stenosis with a physical exam and imaging tests. Treatments include medications, physical therapy, braces, and surgery.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases


[Learn More in MedlinePlus]

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 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.