Version 2024
No Valid Principal Dx

2024 ICD-10-CM Diagnosis Code R40.243

Glasgow coma scale score 3-8

ICD-10-CM Code:
R40.243
ICD-10 Code for:
Glasgow coma scale score 3-8
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
    (R00–R99)
    • Symptoms and signs involving cognition, perception, emotional state and behavior
      (R40-R46)
      • Somnolence, stupor and coma
        (R40)

R40.243 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of glasgow coma scale score 3-8. 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.

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

Specific Coding Applicable to Glasgow coma scale score 3-8

Non-specific codes like R40.243 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 glasgow coma scale score 3-8:

  • Use R40.2430 for unspecified time - BILLABLE CODE

  • Use R40.2431 for in the field [EMT or ambulance] - BILLABLE CODE

  • Use R40.2432 for at arrival to emergency department - BILLABLE CODE

  • Use R40.2433 for at hospital admission - BILLABLE CODE

  • Use R40.2434 for 24 hours or more after hospital admission - BILLABLE CODE

Clinical Classification

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).

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.