894 MS-DRG: ALCOHOL, DRUG ABUSE OR DEPENDENCE, LEFT AMA
MS-DRG 894 groups Medicare inpatient hospital stays for: ALCOHOL, DRUG ABUSE OR DEPENDENCE, LEFT AMA. This is a medical MS-DRG. It falls under MDC 20 (Alcohol or Drug Use or Induced Organic Mental Disorders).
Payment & Classification Data
Official CMS values from the FY2027 IPPS Final Rule Table 5.
| Major Diagnostic Category | MDC 20 — Alcohol or Drug Use or Induced Organic Mental Disorders |
| DRG Type | Medical |
| Severity Level | N/A |
| Relative Weight | 0.6275 |
| Relative Weight (10% Cap Applied) | 0.6275 |
| Geometric Mean Length of Stay | 2 days |
| Arithmetic Mean Length of Stay | 2.7 days |
| Post-Acute Transfer DRG | No |
| Special Pay Transfer DRG | No |
Defining Codes (FY2027)
457 diagnosis codes can drive assignment here: F10.10, F10.11, F10.120, F10.121, F10.129, F10.130, F10.131, F10.132, F10.139, F10.14, F10.150, F10.151 and 445 more.
From the CMS MS-DRG Definitions Manual (Appendices B and E). Assignment also depends on severity, discharge status and the rest of the claim.
Contextual Map
Every relationship of 894 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.
Major Diagnostic Category
- MDC 20 — Alcohol or Drug Use or Induced Organic Mental Disorders[MDC]— CMS MS-DRG Definitions Manual · FY2027
Defining diagnoses (457)
- F10.10 — Alcohol abuse, uncomplicated[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- F10.11 — Alcohol abuse, in remission[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- F10.120 — Alcohol abuse with intoxication, uncomplicated[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- F10.121 — Alcohol abuse with intoxication delirium[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- F10.129 — Alcohol abuse with intoxication, unspecified[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- F10.130 — Alcohol abuse with withdrawal, uncomplicated[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- F10.131 — Alcohol abuse with withdrawal delirium[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- F10.132 — Alcohol abuse with withdrawal with perceptual disturbance[Grouper diagnosis]— CMS MS-DRG Definitions Manual (Appendix B) · FY2027
- and 449 more
DRG family
- DRG 895 — ALCOHOL, DRUG ABUSE OR DEPENDENCE WITH REHABILITATION THERAPY[DRG family]: “ALCOHOL, DRUG ABUSE OR DEPENDENCE WITH REHABILITATION THERAPY — same CMS DRG family (894-897), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 894-897) · FY2027
- DRG 896 — ALCOHOL, DRUG ABUSE OR DEPENDENCE WITHOUT REHABILITATION THERAPY WITH MCC[DRG family]: “ALCOHOL, DRUG ABUSE OR DEPENDENCE WITHOUT REHABILITATION THERAPY WITH MCC — same CMS DRG family (894-897), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 894-897) · FY2027
- DRG 897 — ALCOHOL, DRUG ABUSE OR DEPENDENCE WITHOUT REHABILITATION THERAPY WITHOUT MCC[DRG family]: “ALCOHOL, DRUG ABUSE OR DEPENDENCE WITHOUT REHABILITATION THERAPY WITHOUT MCC — same CMS DRG family (894-897), split by severity.”— CMS MS-DRG Definitions Manual (DRG family 894-897) · FY2027
Read from: CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v44. All data sources · How to read the labels · How MedCoder verifies its implementation
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources