R40.2142
R40.2142: Coma scale, eyes open, spontaneous, at arrival to emergency department
Billable / specific codeICD-10-CM
R40.2142 is a billable, specific ICD-10-CM code for coma scale, eyes open, spontaneous, at arrival to emergency department. It is valid for submission on a claim.
Check R40.2142 with the rest of the claim: free scrubber7th character "2": at arrival to emergency department
The following appropriate 7th character is to be added to subcategory R40.21-:
- 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
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Coma scale eye opening score of 4
Excludes1 inherited from the categories above R40.2142
A category’s note binds every code beneath it.
Other codes that can never be billed with R40.2142
Their own Excludes1 notes name this code, so the conflict is not listed above.
- R41.82Altered mental status, unspecified
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
R40.2142 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing
Code history
Unchanged in every release from FY2024 to FY2027.