ICD-10-CM Codes
R00-R99
R40-R46
R40-
2023 ICD-10-CM Diagnosis Code R40.1

2023 ICD-10-CM Diagnosis Code R40.1

Stupor

2016

2017

2018

2019

2020

2021

2022

2023

Billable/Specific Code

R40.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM R40.1 became effective on October 1, 2022.
This is the American ICD-10-CM version of R40.1 - other international versions of ICD-10 R40.1 may differ.

Applicable To

Catatonic stupor
Semicoma

Type 1 Excludes

Type 1 Excludes Help

A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as R40.1. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

catatonic schizophrenia (
ICD-10-CM Diagnosis Code F20.2
Catatonic schizophrenia
Applicable To
- Schizophrenic catalepsy
- Schizophrenic catatonia
- Schizophrenic flexibilitas cerea
Type 1 Excludes
- catatonic stupor (R40.1)
F20.2
)
coma (
ICD-10-CM Diagnosis Code R40.2
Coma
Code First
- any associated:
- fracture of skull (S02.-)
- intracranial injury (S06.-)
Note
- One code from each subcategory, R40.21-R40.23, is required to complete the coma scale
R40.2-
)
depressive stupor (
ICD-10-CM Diagnosis Code F31
Bipolar disorder
Includes
- bipolar I disorder
- bipolar type I disorder
- manic-depressive illness
- manic-depressive psychosis
- manic-depressive reaction
- seasonal bipolar disorder
Type 1 Excludes
- bipolar disorder, single manic episode (F30.-)
- major depressive disorder, single episode (F32.-)
- major depressive disorder, recurrent (F33.-)
Type 2 Excludes
- cyclothymia (F34.0)
F31
-
ICD-10-CM Diagnosis Code F33
Major depressive disorder, recurrent
Includes
- recurrent episodes of depressive reaction
- recurrent episodes of endogenous depression
- recurrent episodes of major depression
- recurrent episodes of psychogenic depression
- recurrent episodes of reactive depression
- recurrent episodes of seasonal affective disorder
- recurrent episodes of seasonal depressive disorder
- recurrent episodes of vital depression
Type 1 Excludes
- bipolar disorder (F31.-)
- manic episode (F30.-)
F33
)
dissociative stupor (
ICD-10-CM Diagnosis Code F44.2
Dissociative stupor
Type 1 Excludes
- catatonic stupor (R40.1)
- stupor NOS (R40.1)
Type 2 Excludes
- catatonic disorder due to known physiological condition (F06.1)
- depressive stupor (F32, F33)
- manic stupor (F30, F31)
F44.2
)
manic stupor (
ICD-10-CM Diagnosis Code F30.2
Manic episode, severe with psychotic symptoms
Applicable To
- Manic stupor
- Mania with mood-congruent psychotic symptoms
- Mania with mood-incongruent psychotic symptoms
F30.2
)

The following code(s) above R40.1 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to R40.1:

R00-R99
2023 ICD-10-CM Range R00-R99
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Note
- 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.
Type 2 Excludes
- 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)
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
R40-R46
2023 ICD-10-CM Range R40-R46
Symptoms and signs involving cognition, perception, emotional state and behavior
Type 2 Excludes
- symptoms and signs constituting part of a pattern of mental disorder (F01-F99)
Symptoms and signs involving cognition, perception, emotional state and behavior
R40
ICD-10-CM Diagnosis Code R40
Somnolence, stupor and coma
Type 1 Excludes
- 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)
Somnolence, stupor and coma

Approximate Synonyms

Mental status, semicoma
Mental status, stupor
Semicoma

Clinical Information

(ob-tun-day-shun) a dulled or reduced level of alertness or consciousness.
A dulled or reduced level of alertness or consciousness.
A state of reduced sensibility and response to stimuli which is distinguished from coma in that the person can be aroused by vigorous and repeated stimulation. The person is still conscious and can make voluntary movements. It can be induced by central nervous system agents. The word derives from latin stupere and is related to stunned, stupid, dazed or lethargy.

ICD-10-CM R40.1 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):

080 Nontraumatic stupor and coma with mcc
081 Nontraumatic stupor and coma without mcc

Convert R40.1 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to R40.1:

Type 1 Excludes: R46.4
, F20.2
, F06.1
, F06.1
, F44.2
, F44.2

ICD-10-CM Diagnosis Code R46.4
Slowness and poor responsiveness
Type 1 Excludes
- stupor (R40.1)
ICD-10-CM Diagnosis Code F20.2
Catatonic schizophrenia
Applicable To
- Schizophrenic catalepsy
- Schizophrenic catatonia
- Schizophrenic flexibilitas cerea
Type 1 Excludes
- catatonic stupor (R40.1)
ICD-10-CM Diagnosis Code F06.1
Catatonic disorder due to known physiological condition
Applicable To
- Catatonia associated with another mental disorder
- Catatonia NOS
Type 1 Excludes
- catatonic stupor (R40.1)
- stupor NOS (R40.1)
Type 2 Excludes
- catatonic schizophrenia (F20.2)
- dissociative stupor (F44.2)
ICD-10-CM Diagnosis Code F06.1
Catatonic disorder due to known physiological condition
Applicable To
- Catatonia associated with another mental disorder
- Catatonia NOS
Type 1 Excludes
- catatonic stupor (R40.1)
- stupor NOS (R40.1)
Type 2 Excludes
- catatonic schizophrenia (F20.2)
- dissociative stupor (F44.2)
ICD-10-CM Diagnosis Code F44.2
Dissociative stupor
Type 1 Excludes
- catatonic stupor (R40.1)
- stupor NOS (R40.1)
Type 2 Excludes
- catatonic disorder due to known physiological condition (F06.1)
- depressive stupor (F32, F33)
- manic stupor (F30, F31)
ICD-10-CM Diagnosis Code F44.2
Dissociative stupor
Type 1 Excludes
- catatonic stupor (R40.1)
- stupor NOS (R40.1)
Type 2 Excludes
- catatonic disorder due to known physiological condition (F06.1)
- depressive stupor (F32, F33)
- manic stupor (F30, F31)

Diagnosis Index entries containing back-references to R40.1:

Catatonic
- stupor R40.1
Clouded state R40.1
Semicoma R40.1
Stupor (catatonic) R40.1

ICD-10-CM Codes Adjacent To R40.1

R39.2 Extrarenal uremia

R39.8 Other symptoms and signs involving the genitourinary system

R39.81 Functional urinary incontinence

R39.82 Chronic bladder pain

R39.83 Unilateral non-palpable testicle

R39.84 Bilateral non-palpable testicles

R39.89 Other symptoms and signs involving the genitourinary system

R39.9 Unspecified symptoms and signs involving the genitourinary system

R40 Somnolence, stupor and coma

R40.0 Somnolence

R40.1 Stupor

R40.2 Coma

R40.20 Unspecified coma

R40.21 Coma scale, eyes open

R40.211 Coma scale, eyes open, never

R40.2110 …… unspecified time

R40.2111 …… in the field [EMT or ambulance]

R40.2112 …… at arrival to emergency department

R40.2113 …… at hospital admission

R40.2114 …… 24 hours or more after hospital admission

R40.212 Coma scale, eyes open, to pain

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code R40.1

Stupor

Catatonic schizophrenia

Coma

Bipolar disorder

Major depressive disorder, recurrent

Dissociative stupor

Manic episode, severe with psychotic symptoms

Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified

Symptoms and signs involving cognition, perception, emotional state and behavior

Somnolence, stupor and coma

Slowness and poor responsiveness

Catatonic schizophrenia

Catatonic disorder due to known physiological condition

Catatonic disorder due to known physiological condition

Dissociative stupor

Dissociative stupor