MS-DRG · FY 2026 v43.0

MS-DRG 618 – Amputation of Lower Limb for Endocrine, Nutritional and Metabolic Disorders without CC/MCC

A Surgical DRG in MDC 10 (Endocrine, Nutritional & Metabolic Diseases & Disorders). Inpatient cases group to DRG 618 when one of the 74 ICD-10-PCS operating-room procedures listed below is reported. Its FY 2026 relative weight is 1.4183 with a geometric mean length of stay of 4.1 days.

Surgical DRG – assigned by operating-room procedure✓ Official CMS v43.0 dataset

1.4183

Relative Weight

4.1

Geometric Mean LOS (days)

5.1

Arithmetic Mean LOS (days)

Procedure Codes

Severity family

DRG 616with MCCWeight 3.4874 · GMLOS 8.8 days DRG 617with CCWeight 1.8703 · GMLOS 5.6 daysDRG 618without CC/MCCWeight 1.4183 · GMLOS 4.1 days

How a case is assigned to DRG 618

The grouper first assigns the case to MDC 10 from the principal diagnosis, then matches a qualifying operating-room procedure from the ICD-10-PCS list below (this is a Surgical DRG), then applies the severity split from secondary diagnoses: with MCC → 616; with CC → 617; without CC/MCC → 618.

ICD-10-PCS

Procedure Codes 74 codes · 18 categories

74 of 74 shown

0Y6C Anatomical Regions, Lower Extremities, Detachment3 codes

0Y6C0Z1 Detachment at Right Upper Leg, High, Open Approach
0Y6C0Z2 Detachment at Right Upper Leg, Mid, Open Approach
0Y6C0Z3 Detachment at Right Upper Leg, Low, Open Approach

0Y6D Anatomical Regions, Lower Extremities, Detachment3 codes

0Y6D0Z1 Detachment at Left Upper Leg, High, Open Approach
0Y6D0Z2 Detachment at Left Upper Leg, Mid, Open Approach
0Y6D0Z3 Detachment at Left Upper Leg, Low, Open Approach

0Y6F Anatomical Regions, Lower Extremities, Detachment1 code

0Y6F0ZZ Detachment at Right Knee Region, Open Approach

0Y6G Anatomical Regions, Lower Extremities, Detachment1 code

0Y6G0ZZ Detachment at Left Knee Region, Open Approach

0Y6H Anatomical Regions, Lower Extremities, Detachment3 codes

0Y6H0Z1 Detachment at Right Lower Leg, High, Open Approach
0Y6H0Z2 Detachment at Right Lower Leg, Mid, Open Approach
0Y6H0Z3 Detachment at Right Lower Leg, Low, Open Approach

0Y6J Anatomical Regions, Lower Extremities, Detachment3 codes

0Y6J0Z1 Detachment at Left Lower Leg, High, Open Approach
0Y6J0Z2 Detachment at Left Lower Leg, Mid, Open Approach
0Y6J0Z3 Detachment at Left Lower Leg, Low, Open Approach

0Y6M Anatomical Regions, Lower Extremities, Detachment11 codes

0Y6M0Z0 Detachment at Right Foot, Complete, Open Approach
0Y6M0Z4 Detachment at Right Foot, Complete 1st Ray, Open Approach
0Y6M0Z5 Detachment at Right Foot, Complete 2nd Ray, Open Approach
0Y6M0Z6 Detachment at Right Foot, Complete 3rd Ray, Open Approach
0Y6M0Z7 Detachment at Right Foot, Complete 4th Ray, Open Approach
0Y6M0Z8 Detachment at Right Foot, Complete 5th Ray, Open Approach
0Y6M0Z9 Detachment at Right Foot, Partial 1st Ray, Open Approach
0Y6M0ZB Detachment at Right Foot, Partial 2nd Ray, Open Approach
0Y6M0ZC Detachment at Right Foot, Partial 3rd Ray, Open Approach
0Y6M0ZD Detachment at Right Foot, Partial 4th Ray, Open Approach
0Y6M0ZF Detachment at Right Foot, Partial 5th Ray, Open Approach

0Y6N Anatomical Regions, Lower Extremities, Detachment11 codes

0Y6N0Z0 Detachment at Left Foot, Complete, Open Approach
0Y6N0Z4 Detachment at Left Foot, Complete 1st Ray, Open Approach
0Y6N0Z5 Detachment at Left Foot, Complete 2nd Ray, Open Approach
0Y6N0Z6 Detachment at Left Foot, Complete 3rd Ray, Open Approach
0Y6N0Z7 Detachment at Left Foot, Complete 4th Ray, Open Approach
0Y6N0Z8 Detachment at Left Foot, Complete 5th Ray, Open Approach
0Y6N0Z9 Detachment at Left Foot, Partial 1st Ray, Open Approach
0Y6N0ZB Detachment at Left Foot, Partial 2nd Ray, Open Approach
0Y6N0ZC Detachment at Left Foot, Partial 3rd Ray, Open Approach
0Y6N0ZD Detachment at Left Foot, Partial 4th Ray, Open Approach
0Y6N0ZF Detachment at Left Foot, Partial 5th Ray, Open Approach

0Y6P Anatomical Regions, Lower Extremities, Detachment3 codes

0Y6P0Z0 Detachment at Right 1st Toe, Complete, Open Approach
0Y6P0Z1 Detachment at Right 1st Toe, High, Open Approach
0Y6P0Z3 Detachment at Right 1st Toe, Low, Open Approach

0Y6Q Anatomical Regions, Lower Extremities, Detachment3 codes

0Y6Q0Z0 Detachment at Left 1st Toe, Complete, Open Approach
0Y6Q0Z1 Detachment at Left 1st Toe, High, Open Approach
0Y6Q0Z3 Detachment at Left 1st Toe, Low, Open Approach

0Y6R Anatomical Regions, Lower Extremities, Detachment4 codes

0Y6R0Z0 Detachment at Right 2nd Toe, Complete, Open Approach
0Y6R0Z1 Detachment at Right 2nd Toe, High, Open Approach
0Y6R0Z2 Detachment at Right 2nd Toe, Mid, Open Approach
0Y6R0Z3 Detachment at Right 2nd Toe, Low, Open Approach

0Y6S Anatomical Regions, Lower Extremities, Detachment4 codes

0Y6S0Z0 Detachment at Left 2nd Toe, Complete, Open Approach
0Y6S0Z1 Detachment at Left 2nd Toe, High, Open Approach
0Y6S0Z2 Detachment at Left 2nd Toe, Mid, Open Approach
0Y6S0Z3 Detachment at Left 2nd Toe, Low, Open Approach

0Y6T Anatomical Regions, Lower Extremities, Detachment4 codes

0Y6T0Z0 Detachment at Right 3rd Toe, Complete, Open Approach
0Y6T0Z1 Detachment at Right 3rd Toe, High, Open Approach
0Y6T0Z2 Detachment at Right 3rd Toe, Mid, Open Approach
0Y6T0Z3 Detachment at Right 3rd Toe, Low, Open Approach

0Y6U Anatomical Regions, Lower Extremities, Detachment4 codes

0Y6U0Z0 Detachment at Left 3rd Toe, Complete, Open Approach
0Y6U0Z1 Detachment at Left 3rd Toe, High, Open Approach
0Y6U0Z2 Detachment at Left 3rd Toe, Mid, Open Approach
0Y6U0Z3 Detachment at Left 3rd Toe, Low, Open Approach

0Y6V Anatomical Regions, Lower Extremities, Detachment4 codes

0Y6V0Z0 Detachment at Right 4th Toe, Complete, Open Approach
0Y6V0Z1 Detachment at Right 4th Toe, High, Open Approach
0Y6V0Z2 Detachment at Right 4th Toe, Mid, Open Approach
0Y6V0Z3 Detachment at Right 4th Toe, Low, Open Approach

0Y6W Anatomical Regions, Lower Extremities, Detachment4 codes

0Y6W0Z0 Detachment at Left 4th Toe, Complete, Open Approach
0Y6W0Z1 Detachment at Left 4th Toe, High, Open Approach
0Y6W0Z2 Detachment at Left 4th Toe, Mid, Open Approach
0Y6W0Z3 Detachment at Left 4th Toe, Low, Open Approach

0Y6X Anatomical Regions, Lower Extremities, Detachment4 codes

0Y6X0Z0 Detachment at Right 5th Toe, Complete, Open Approach
0Y6X0Z1 Detachment at Right 5th Toe, High, Open Approach
0Y6X0Z2 Detachment at Right 5th Toe, Mid, Open Approach
0Y6X0Z3 Detachment at Right 5th Toe, Low, Open Approach

0Y6Y Anatomical Regions, Lower Extremities, Detachment4 codes

0Y6Y0Z0 Detachment at Left 5th Toe, Complete, Open Approach
0Y6Y0Z1 Detachment at Left 5th Toe, High, Open Approach
0Y6Y0Z2 Detachment at Left 5th Toe, Mid, Open Approach
0Y6Y0Z3 Detachment at Left 5th Toe, Low, Open Approach

ICD-10-CM

Qualifying Diagnosis Codes

Diagnosis codes do not drive assignment for this DRG. Cases group here from the ICD-10-PCS procedure list below.

Frequently Asked Questions

What is MS-DRG 618?

MS-DRG 618 (Amputation of Lower Limb for Endocrine, Nutritional and Metabolic Disorders without CC/MCC) is a surgical DRG in MDC 10 (Endocrine, Nutritional & Metabolic Diseases & Disorders). Its FY 2026 relative weight is 1.4183 with a geometric mean length of stay of 4.1 days.

What is the difference between DRG 616, 617, 618?

All 3 share the same base category; the severity of secondary diagnoses separates them: 616 (with MCC), 617 (with CC), 618 (without CC/MCC). A major complication or comorbidity (MCC) places the case in the highest-weighted DRG of the family; a CC in the middle; neither in the lowest.

How many procedure codes group to DRG 618?

74 ICD-10-PCS operating-room procedure codes group to this DRG.

What is the relative weight of DRG 618?

The FY 2026 relative weight of this DRG is 1.4183, meaning reimbursement of roughly 1.42 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.