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R40.2342

✓ Billable

Coma scale, best motor response, flexion withdrawal, at arrival to emergency department

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

R40
  • • neonatal coma (P91.5)
  • • somnolence, stupor and coma in diabetes (E08-E13)
  • • somnolence, stupor and coma in hepatic failure (K72.-)
  • • somnolence, stupor and coma in hypoglycemia (nondiabetic) (E15)

📋 Code Instructions

inherited
R40.2
  • • Code first: any associated:
  • • Code first: fracture of skull (S02.-)
  • • Code first: intracranial injury (S06.-)

Clinical Description

ICD-10-CM code R40.2342 represents coma scale, best motor response, flexion withdrawal, at arrival to emergency department. This code falls under the Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 8-character code at the 7th level of specificity. This is the most specific code available in this subcategory. Coders should note that R40.2342 has 4 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code R40.2342?

ICD-10-CM code R40.2342 is "Coma scale, best motor response, flexion withdrawal, at arrival to emergency department". It belongs to the category: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).

Is R40.2342 a billable ICD-10 code?

Yes, R40.2342 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What codes are excluded with R40.2342?

R40.2342 has 4 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Related Codes in R40.234

Other codes in the same category that may be relevant for differential coding:

R40.2340Coma scale, best motor response, flexion withdrawal, unspecified timeR40.2341Coma scale, best motor response, flexion withdrawal, in the field [EMT or ambulance]R40.2343Coma scale, best motor response, flexion withdrawal, at hospital admissionR40.2344Coma scale, best motor response, flexion withdrawal, 24 hours or more after hospital admission

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Code Information

CodeR40.2342
BillableYes
ParentR40.234
CategorySymptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Excludes14 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)