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U.S. ICD-10-CM · FY 2027

R40.2221 ICD-10-CM Code: Coma scale, best verbal response, incomprehensible words, in the field [EMT or ambulance]

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

R40.2221

Coma scale, best verbal response, incomprehensible words, in the field [EMT or ambulance]

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where R40.2221 sits

  1. 1

    Chapter 18

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

  2. 2

    Section

    Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46)

  3. 3

    Category R40

    Somnolence, stupor and coma

  4. 4

    Subcategory R40.222

    Coma scale, best verbal response, incomprehensible words

  5. 5

    Code R40.2221

    Coma scale, best verbal response, incomprehensible words, in the field [EMT or ambulance]

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for R40.2221.

Code first

No “code first” instruction is listed for R40.2221.

Use additional code

No “use additional code” instruction is listed for R40.2221.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for R40.2221.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for R40.2221.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code R40.2221 mean?

R40.2221 is the FY 2027 U.S. ICD-10-CM code for “Coma scale, best verbal response, incomprehensible words, in the field [EMT or ambulance].”

Is R40.2221 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, R40.2221 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is R40.2221 located in ICD-10-CM?

R40.2221 is listed in Chapter 18, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99), within Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46) (R40–R46), under category R40, Somnolence, stupor and coma and subcategory R40.222, Coma scale, best verbal response, incomprehensible words.

What coding notes are listed for R40.2221?

No inclusion terms are listed for R40.2221 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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