R40.222 – Coma scale, best verbal response, incomprehensible words

ICD-10-CM 2027 diagnosis code · Symptoms and signs involving cognition, perception, emotional state and behavior

Non-billable header

ICD-10-CM code R40.222
Code
R40.222 (claims format: R40222)
Description
Coma scale, best verbal response, incomprehensible words
Billable
No – use a more specific code below
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block
R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior
Parent codes
R40 › R40.2 › R40.22

Billable codes under R40.222

R40.222 is a header code and cannot be used on claims. Choose the most specific code:

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care.

CharacterMeaning
0unspecified time
1in the field [EMT or ambulance]
2at arrival to emergency department
3at hospital admission
424 hours or more after hospital admission

Notes for R40.222

Applicable to:
  • Coma scale verbal score of 2
  • Incomprehensible sounds (2-5 years of age)
  • Moans/grunts to pain; restless (<2 years old)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

R40 – Somnolence, stupor and coma

Excludes1 (not coded here):
  • 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)

R40.2 – Coma

Code first:
  • any associated:
  • fracture of skull (S02.-)
  • intracranial injury (S06.-)
Notes:
  • One code from each subcategory, R40.21-R40.23, is required to complete the coma scale

R40.22 – Coma scale, best verbal response

7th character note:
  • The following appropriate 7th character is to be added to subcategory R40.22-:

Block R40-R46

Excludes2 (not included here):
  • symptoms and signs constituting part of a pattern of mental disorder (F01-F99)

Index terms for R40.222

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in R40.22

Frequently asked questions

What is ICD-10 code R40.222?

R40.222 is the ICD-10-CM code for coma scale, best verbal response, incomprehensible words, in the block R40-R46 (Symptoms and signs involving cognition, perception, emotional state and behavior).

Is R40.222 a billable code?

No. R40.222 is a header code with more specific child codes; report one of the billable codes listed above.

What category does R40.222 belong to?

It belongs to category R40 – Somnolence, stupor and coma.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.