R40.2444 — Other coma, without documented Glasgow coma scale score, or with partial score reported, 24 hours or more after hospital admission
R40.2444 is a billable, specific ICD-10-CM code for other coma, without documented glasgow coma scale score, or with partial score reported, 24 hours or more after hospital admission. It is valid for submission on a claim.
7th character "4" — 24 hours or more after hospital admission
The following appropriate 7th character is to be added to subcategory R40.24-:
- 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
Risk adjustment
R40.2444 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 202 Coma, Brain Compression/Anoxic Damage0.543 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
R40.2444 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56612Billing and Coding: CT of the Head
- A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing
- A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing
- A56769Billing and Coding: Somatosensory Testing
Related codes at this level
Codes that share R40.244. If R40.2444 is not quite right, the correct code is usually one of these.
- R40.2440Other coma, without documented Glasgow coma scale score, or with partial score reported, unspecified time
- R40.2441Other coma, without documented Glasgow coma scale score, or with partial score reported, in the field [EMT or ambulance]
- R40.2442Other coma, without documented Glasgow coma scale score, or with partial score reported, at arrival to emergency department
- R40.2443Other coma, without documented Glasgow coma scale score, or with partial score reported, at hospital admission
Questions about R40.2444
- Is R40.2444 a billable ICD-10-CM code?
- Yes. R40.2444 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R40.2444 sit in the tabular list?
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), in the block Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46).