ICD-10-CM · Chapter 18 · R00–R99
R40.2112
Coma scale, eyes open, never, at arrival to emergency department
Symptoms, signs and abnormal clinical and laboratory findings
Quick facts
- Code
- R40.2112
- 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 R40.2112 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of coma scale, eyes open, never, at arrival to emergency department. 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]
- R40.2113Coma 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]
- R40.2122Coma scale, eyes open, to pain, at arrival to emergency department
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