ICD-10-CM 2027
ICD-10 code for stupor
From the official ICD-10-CM alphabetic index entry “Stupor (catatonic)”. Page updated September 29, 2026.
About coding stupor
The ICD-10-CM code for stupor is R40.1 (Stupor). The official index lists 7 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on R40.1.
Within R40 (Somnolence, stupor and coma), R40.1 is specifically for stupor. Related codes cover Somnolence (R40.0), coma (R40.2), persistent vegetative state (R40.3) and transient alteration of awareness (R40.4).
Don't report R40.1 together with the conditions in its Excludes1 note: catatonic schizophrenia (F20.2), coma (R40.2-), depressive stupor (F31.-, F32.-, F33.-), dissociative stupor (F44.2) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific stupor codes (official index)
- depressive (single episode) F32.89 — Other specified depressive episodes
- recurrent episode F33.8 — Other recurrent depressive disorders
- dissociative F44.2 — Dissociative stupor
- manic F30.2 — Manic episode, severe with psychotic symptoms
- manic-depressive F31.89 — Other bipolar disorder
- psychogenic (anergic) F44.2 — Dissociative stupor
- reaction to exceptional stress (transient) F43.0 — Acute stress reaction
Don't confuse with (Excludes1 for R40.1)
Common questions about stupor ICD-10 codes
What is the ICD-10 code for stupor?
- R40.1 — Stupor. More specific codes apply when the documentation supports them: F32.89, F33.8, F44.2, F30.2 and others below.
What is the ICD-10 code for depressive stupor?
- F32.89 — Other specified depressive episodes.
What is the ICD-10 code for dissociative stupor?
- F44.2 — Dissociative stupor.
What is the ICD-10 code for manic stupor?
- F30.2 — Manic episode, severe with psychotic symptoms.
What is the ICD-10 code for manic-depressive stupor?
- F31.89 — Other bipolar disorder.
What is the ICD-10 code for psychogenic stupor?
- F44.2 — Dissociative stupor.
What is the ICD-10 code for reaction to exceptional stress stupor?
- F43.0 — Acute stress reaction.
Is R40.1 billable?
- Yes. R40.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can R40.1 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict R40.1 as a principal diagnosis.
Is R40.1 a CC or MCC?
- No. R40.1 is neither a CC nor an MCC under MS-DRG v44.0.