R40.2250 - Coma scale, best verbal response, oriented, unspecified time
ICD-10-CM Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified · R40-R46 Symptoms and signs involving cognition, perception, emotional state and behavior (R40-R46) · Subcategory of R40.225 · FY2027
7th character 0: unspecified time
Coding Guidance
7th character 0: unspecified time.
Includes, Excludes and Coding Notes
Sequence the underlying condition before this code.
- any associated:
- fracture of skull (S02.-)
- intracranial injury (S06.-)
Instructional notes from the ICD-10-CM tabular list.
- One code from each subcategory, R40.21-R40.23, is required to complete the coma scale
Mutually exclusive: these conditions are never reported together with this code.
- 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)
Not part of this code; report both codes when the patient has both conditions.
- symptoms and signs constituting part of a pattern of mental disorder (F01-F99)
Not part of this code; report both codes when the patient has both conditions.
- abnormal findings on antenatal screening of mother (O28.-)
- certain conditions originating in the perinatal period (P04-P96)
- signs and symptoms classified in the body system chapters
- signs and symptoms of breast (N63, N64.5)
Instructional notes from the ICD-10-CM tabular list.
- This chapter includes symptoms, signs, abnormal results of clinical or other investigative procedures, and ill-defined conditions regarding which no diagnosis classifiable elsewhere is recorded.
- Signs and symptoms that point rather definitely to a given diagnosis have been assigned to a category in other chapters of the classification. In general, categories in this chapter include the less well-defined conditions and symptoms that, without the necessary study of the case to establish a final diagnosis, point perhaps equally to two or more diseases or to two or more systems of the body. Practically all categories in the chapter could be designated 'not otherwise specified', 'unknown etiology' or 'transient'. The Alphabetical Index should be consulted to determine which symptoms and signs are to be allocated here and which to other chapters. The residual subcategories, numbered .8, are generally provided for other relevant symptoms that cannot be allocated elsewhere in the classification.
- The conditions and signs or symptoms included in categories R00-R94 consist of:
- (a) cases for which no more specific diagnosis can be made even after all the facts bearing on the case have been investigated;
- (b) signs or symptoms existing at the time of initial encounter that proved to be transient and whose causes could not be determined;
- (c) provisional diagnosis in a patient who failed to return for further investigation or care;
- (d) cases referred elsewhere for investigation or treatment before the diagnosis was made;
- (e) cases in which a more precise diagnosis was not available for any other reason;
- (f) certain symptoms, for which supplementary information is provided, that represent important problems in medical care in their own right.
Related condition guides
Documentation requirements, coding pitfalls and FAQs for conditions coded with R40.2250.
Codes at the same level as R40.2250
- Coma scale, best verbal response, oriented, in the field [EMT or ambulance]R40.2251
- Coma scale, best verbal response, oriented, at arrival to emergency departmentR40.2252
- Coma scale, best verbal response, oriented, at hospital admissionR40.2253
- Coma scale, best verbal response, oriented, 24 hours or more after hospital admissionR40.2254