ICD-10-CM Code R40.23

Coma scale, best motor response

Version 2020 Non-Billable Code No Valid Principal Dx

Not Valid for Submission

R40.23 is a "header" nonspecific and non-billable code code, consider using a code with a higher level of specificity for a diagnosis of coma scale, best motor response. The code is NOT valid for the year 2020 for the submission of HIPAA-covered transactions.

ICD-10:R40.23
Short Description:Coma scale, best motor response
Long Description:Coma scale, best motor response

Consider the following ICD-10 codes with a higher level of specificity:

  • R40.231 - ... none
  • R40.2310 - ... none, unspecified time
  • R40.2311 - ... none, in the field [EMT or ambulance]
  • R40.2312 - ... none, at arrival to emergency department
  • R40.2313 - ... none, at hospital admission
  • R40.2314 - ... none, 24 hours or more after hospital admission
  • R40.232 - ... extension
  • R40.2320 - ... extension, unspecified time
  • R40.2321 - ... extension, in the field [EMT or ambulance]
  • R40.2322 - ... extension, at arrival to emergency department
  • R40.2323 - ... extension, at hospital admission
  • R40.2324 - ... extension, 24 hours or more after hospital admission
  • R40.233 - ... abnormal flexion
  • R40.2330 - ... abnormal flexion, unspecified time
  • R40.2331 - ... abnormal flexion, in the field [EMT or ambulance]
  • R40.2332 - ... abnormal flexion, at arrival to emergency department
  • R40.2333 - ... abnormal flexion, at hospital admission
  • R40.2334 - ... abnormal flexion, 24 hours or more after hospital admission
  • R40.234 - ... flexion withdrawal
  • R40.2340 - ... flexion withdrawal, unspecified time
  • R40.2341 - ... flexion withdrawal, in the field [EMT or ambulance]
  • R40.2342 - ... flexion withdrawal, at arrival to emergency department
  • R40.2343 - ... flexion withdrawal, at hospital admission
  • R40.2344 - ... flexion withdrawal, 24 hours or more after hospital admission
  • R40.235 - ... localizes pain
  • R40.2350 - ... localizes pain, unspecified time
  • R40.2351 - ... localizes pain, in the field [EMT or ambulance]
  • R40.2352 - ... localizes pain, at arrival to emergency department
  • R40.2353 - ... localizes pain, at hospital admission
  • R40.2354 - ... localizes pain, 24 hours or more after hospital admission
  • R40.236 - ... obeys commands
  • R40.2360 - ... obeys commands, unspecified time
  • R40.2361 - ... obeys commands, in the field [EMT or ambulance]
  • R40.2362 - ... obeys commands, at arrival to emergency department
  • R40.2363 - ... obeys commands, at hospital admission
  • R40.2364 - ... obeys commands, 24 hours or more after hospital admission

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code R40.23:

7th Character Note

7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
  • The following appropriate 7th character is to be added to subcategory R40.23-:

7th Character

7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
  • 0 - unspecified time
  • 1 - in the field EMT or ambulance
  • 2 - at arrival to emergency department
  • 3 - at hospital admission
  • 4 - 24 hours or more after hospital admission

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)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020