2021 ICD-10-CM Code R40.2131

Coma scale, eyes open, to sound, in the field [EMT or ambulance]

Version 2021
Billable Code
No Valid Principal Dx
7th Character Code
Unacceptable Principal Diagnosis

Valid for Submission

R40.2131 is a billable diagnosis code used to specify a medical diagnosis of coma scale, eyes open, to sound, in the field [emt or ambulance]. The code R40.2131 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.

The code R40.2131 describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.

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.

ICD-10:R40.2131
Short Description:Coma scale, eyes open, to sound, in the field
Long Description:Coma scale, eyes open, to sound, in the field [EMT or ambulance]

Code Classification

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

Convert R40.2131 to ICD-9 Code

Code History

  • 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 (First year ICD-10-CM implemented into the HIPAA code set)