R40.2440 - Other coma, without documented Glasgow coma scale score, or with partial score reported, unspecified time
| ICD-10: | R40.2440 |
| Short Description: | Other coma, without Glasgow, or w/part score, unsp time |
| Long Description: | Other coma, without documented Glasgow coma scale score, or with partial score reported, unspecified time |
| Status: | Valid for Submission |
| Version: | ICD-10-CM 2023 |
| Code Classification: |
R40.2440 is a billable ICD-10 code used to specify a medical diagnosis of other coma, without documented glasgow coma scale score, or with partial score reported, unspecified time. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.
This code 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.
Unspecified diagnosis codes like R40.2440 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
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.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Blistering of skin due to drug-induced coma
- Bullae and sweat gland necrosis in drug-induced coma
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:
- Unacceptable principal diagnosis - There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.
Replacement Code
R402440 replaces the following previously assigned ICD-10 code(s):
- R40.244 - Oth coma,w/o Glasgow coma scale score,or w/part score report
Convert to ICD-9 Code
| Source ICD-10 Code | Target ICD-9 Code | |
|---|---|---|
| R40.2440 | - | |
| No Map Flag - | ||
Code History
- 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
