R40.2324 — Coma scale, best motor response, extension, 24 hours or more after hospital admission
R40.2324 is a billable, specific ICD-10-CM code for coma scale, best motor response, extension, 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 R40.23-:
- 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.
- Abnormal extensor posturing to pain or noxious stimuli (< 2 years of age)
- Coma scale motor score of 2
- Extensor posturing to pain or noxious stimuli (2-5 years of age)
Risk adjustment
R40.2324 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
R40.2324 is named in 21 Medicare coverage policies — 21 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A54799Billing and Coding: Urine Drug Testing
- A55001Billing and Coding: Urine Drug Testing
- A56612Billing and Coding: CT of the Head
- A56645Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing
Related codes at this level
Codes that share R40.232. If R40.2324 is not quite right, the correct code is usually one of these.
- R40.2320Coma scale, best motor response, extension, unspecified time
- R40.2321Coma scale, best motor response, extension, in the field [EMT or ambulance]
- R40.2322Coma scale, best motor response, extension, at arrival to emergency department
- R40.2323Coma scale, best motor response, extension, at hospital admission
Questions about R40.2324
- Is R40.2324 a billable ICD-10-CM code?
- Yes. R40.2324 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does R40.2324 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).