ICD-10-CM · Chapter 18 · R00–R99
R40.2221
Coma scale, best verbal response, incomprehensible words, in the field [EMT or ambulance]
Symptoms, signs and abnormal clinical and laboratory findings
Quick facts
- Code
- R40.2221
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 18 — Symptoms, signs and abnormal clinical and laboratory findings
- Category
- R40 — Somnolence, stupor and coma
- Specificity
- 7 characters
How coders use this code
ICD-10-CM R40.2221 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of coma scale, best verbal response, incomprehensible words, in the field [emt or ambulance]. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in R40
- R40Somnolence, stupor and coma
- R40.0Somnolence
- R40.1Stupor
- R40.2Coma
- R40.20Unspecified coma
- R40.21Coma scale, eyes open
- R40.211Coma scale, eyes open, never
- R40.2110Coma scale, eyes open, never, unspecified time
- R40.2111Coma scale, eyes open, never, in the field [EMT or ambulance]
- R40.2112Coma scale, eyes open, never, at arrival to emergency department
- R40.2113Coma scale, eyes open, never, at hospital admission
- R40.2114Coma scale, eyes open, never, 24 hours or more after hospital admission
- R40.212Coma scale, eyes open, to pain
- R40.2120Coma scale, eyes open, to pain, unspecified time
- R40.2121Coma scale, eyes open, to pain, in the field [EMT or ambulance]
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