MS-DRG · FY 2026 v43.0
MS-DRG 885 – Psychoses
A Medical DRG in MDC 19 (Mental Diseases & Disorders). Inpatient cases group to DRG 885 when the ICD-10-CM principal diagnosis is one of the 79 codes listed below. Its FY 2026 relative weight is 1.3968 with a geometric mean length of stay of 6.5 days.
Medical DRG – assigned by principal diagnosis✓ Official CMS v43.0 dataset
1.3968
Relative Weight
6.5
Geometric Mean LOS (days)
9.8
Arithmetic Mean LOS (days)
79
Principal Diagnosis Codes
How a case is assigned to DRG 885
The grouper first assigns the case to MDC 19 from the principal diagnosis and finds no qualifying operating-room procedure (this is a Medical DRG; ICD-10-PCS codes do not drive assignment here).
ICD-10-CM
Principal Diagnosis Codes 79 codes · 15 categories
79 of 79 shown
F20 Schizophrenia8 codes
F22 Delusional disorders1 code
- F22 Delusional disorders
F23 Brief psychotic disorder1 code
- F23 Brief psychotic disorder
F24 Shared psychotic disorder1 code
- F24 Shared psychotic disorder
F25 Schizoaffective disorders4 codes
F28 Other psychotic disorder not due to a substance or known physiological condition1 code
- F28 Other psychotic disorder not due to a substance or known physiological condition
F29 Unspecified psychosis not due to a substance or known physiological condition1 code
- F29 Unspecified psychosis not due to a substance or known physiological condition
F30 Manic episode9 codes
- F30.10 Manic episode without psychotic symptoms, unspecified
- F30.11 Manic episode without psychotic symptoms, mild
- F30.12 Manic episode without psychotic symptoms, moderate
- F30.13 Manic episode, severe, without psychotic symptoms
- F30.2 Manic episode, severe with psychotic symptoms
- F30.3 Manic episode in partial remission
- F30.4 Manic episode in full remission
- F30.8 Other manic episodes
- F30.9 Manic episode, unspecified
F31 Bipolar disorder28 codes
- F31.0 Bipolar disorder, current episode hypomanic
- F31.10 Bipolar disorder, current episode manic without psychotic features, unspecified
- F31.11 Bipolar disorder, current episode manic without psychotic features, mild
- F31.12 Bipolar disorder, current episode manic without psychotic features, moderate
- F31.13 Bipolar disorder, current episode manic without psychotic features, severe
- F31.2 Bipolar disorder, current episode manic severe with psychotic features
- F31.30 Bipolar disorder, current episode depressed, mild or moderate severity, unspecified
- F31.31 Bipolar disorder, current episode depressed, mild
- F31.32 Bipolar disorder, current episode depressed, moderate
- F31.4 Bipolar disorder, current episode depressed, severe, without psychotic features
- F31.5 Bipolar disorder, current episode depressed, severe, with psychotic features
- F31.60 Bipolar disorder, current episode mixed, unspecified
- F31.61 Bipolar disorder, current episode mixed, mild
- F31.62 Bipolar disorder, current episode mixed, moderate
- F31.63 Bipolar disorder, current episode mixed, severe, without psychotic features
- F31.64 Bipolar disorder, current episode mixed, severe, with psychotic features
- F31.70 Bipolar disorder, currently in remission, most recent episode unspecified
- F31.71 Bipolar disorder, in partial remission, most recent episode hypomanic
- F31.72 Bipolar disorder, in full remission, most recent episode hypomanic
- F31.73 Bipolar disorder, in partial remission, most recent episode manic
- F31.74 Bipolar disorder, in full remission, most recent episode manic
- F31.75 Bipolar disorder, in partial remission, most recent episode depressed
- F31.76 Bipolar disorder, in full remission, most recent episode depressed
- F31.77 Bipolar disorder, in partial remission, most recent episode mixed
- F31.78 Bipolar disorder, in full remission, most recent episode mixed
- F31.81 Bipolar II disorder
- F31.89 Other bipolar disorder
- F31.9 Bipolar disorder, unspecified
F32 Depressive episode8 codes
- F32.0 Major depressive disorder, single episode, mild
- F32.1 Major depressive disorder, single episode, moderate
- F32.2 Major depressive disorder, single episode, severe without psychotic features
- F32.3 Major depressive disorder, single episode, severe with psychotic features
- F32.4 Major depressive disorder, single episode, in partial remission
- F32.5 Major depressive disorder, single episode, in full remission
- F32.81 Premenstrual dysphoric disorder
- F32.89 Other specified depressive episodes
F33 Major depressive disorder, recurrent9 codes
- F33.0 Major depressive disorder, recurrent, mild
- F33.1 Major depressive disorder, recurrent, moderate
- F33.2 Major depressive disorder, recurrent severe without psychotic features
- F33.3 Major depressive disorder, recurrent, severe with psychotic symptoms
- F33.40 Major depressive disorder, recurrent, in remission, unspecified
- F33.41 Major depressive disorder, recurrent, in partial remission
- F33.42 Major depressive disorder, recurrent, in full remission
- F33.8 Other recurrent depressive disorders
- F33.9 Major depressive disorder, recurrent, unspecified
F34 Persistent mood [affective] disorders3 codes
F39 Unspecified mood [affective] disorder1 code
- F39 Unspecified mood [affective] disorder
F53 Mental and behavioral disorders associated with the puerperium, not elsewhere classified1 code
- F53.1 Puerperal psychosis
ICD-10-PCS
Procedure Codes
Procedure codes do not drive assignment for this DRG. DRG 885 is a Medical DRG, assigned from the principal diagnosis above.
Frequently Asked Questions
What is MS-DRG 885?
MS-DRG 885 (Psychoses) is a medical DRG in MDC 19 (Mental Diseases & Disorders). Its FY 2026 relative weight is 1.3968 with a geometric mean length of stay of 6.5 days.
How many diagnosis codes group to DRG 885?
79 ICD-10-CM principal diagnosis codes group to this DRG, spanning 15 three-character categories.
What is the relative weight of DRG 885?
The FY 2026 relative weight of this DRG is 1.3968, meaning reimbursement of roughly 1.40 times the average Medicare inpatient case. Multiply by a hospital's blended base rate for the approximate payment.
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Source: CMS ICD-10 MS-DRG v43.0 Definitions Manual and the FY 2026 IPPS Final Rule (Table 5), effective October 1, 2025 through September 30, 2026. We publish the DRG assignments as CMS defines them and add the navigation, search, and code links.
