All ICD10 Codes
MS-DRG 818Surgical

Other Antepartum Diagnoses with O.R. Procedures with CC

Major Diagnostic Category 14·Grouped by procedure·FY 2027

MS-DRG 818 is a Surgical Medicare Severity Diagnosis Related Group under Major Diagnostic Category 14 (MDC 14) with a Complication or Comorbidity (CC). It maps to 1,964 ICD-10-CM diagnosis codes. For FY 2027 it carries a relative weight of 1.2942 with a geometric mean length of stay of 3 days and an arithmetic mean of 3.8 days. Hospitals use this grouping to determine reimbursement for inpatient stays under Medicare.

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FY 2027 payment data

From Table 5 of the FY 2027 IPPS Final Rule (CMS).

Relative weight:
1.2942 (payment multiplier vs. the average case (1.0))
Geometric mean stay:
3 days (used for transfer payments)
Average stay:
3.8 days (arithmetic mean)
Post-acute transfer policy:
No (not subject to it)

Same condition, other severity levels

CMS splits one condition into separate DRGs by how sick the patient is. With MCC pays more than with CC, which pays more than without CC/MCC.

DRGTitleRelative weightMean stay
817Other Antepartum Diagnoses with O.R. Procedures with MCC2.05342.7 days
818Other Antepartum Diagnoses with O.R. Procedures with CC (this page)1.29423 days
819Other Antepartum Diagnoses with O.R. Procedures without CC/MCC0.77391.9 days

Diagnosis codes (1,964)

As the principal diagnosis, these ICD-10-CM codes can group to DRG 818. 100% of the codes listed are billable.

Showing the first 1,000 of 1,964 codes. Use search to find a specific code.