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ICDMine.com › Browse ICD-10-CM Codes › Ch. 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) › Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46) › R40.2 Coma › R40.2A

R40.2ANontraumatic coma due to underlying condition

ICD-10-CM billable/specific code — part of Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)

Code Details

BillableYes
ChapterChapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
SectionSymptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)
Parent codeR40.2 — Coma

Coding Notes

Inclusion Terms

  • Secondary coma

Excludes1 (never code both together)

  • coma scale, best motor response (R40.24.-)
  • coma scale, best verbal response (R40.22.-)
  • coma scale, eyes open (R40.21.-)
  • Glasgow coma scale, total score (R40.23.-)

Code First

  • underlying condition
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