G9813 HCPCS: 30-Day Survival Benchmarks & Policy | OpenPayer

Summary & Overview

HCPCS G9813: Patient Did Not Die Within 30 Days of Procedure or During Index Hospitalization

HCPCS Level II code G9813 documents that a patient did not die within 30 days of a procedure or during the index hospitalization. As a short-term mortality outcome code, it captures immediate post-procedural survival and is relevant for hospital quality measurement, care coordination, and claims-based outcome reporting. Nationally, such codes support benchmarking, public reporting, and payment policy frameworks tied to outcomes.

Key payers covered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find context on the clinical meaning of the code, typical sites of service, and how the code functions as an outcome indicator in claims data. The publication outlines where this code fits within quality measurement and administrative reporting, highlights typical use cases for hospitals and payers, and notes the absence of supplementary data elements in the input where applicable.

This summary is intended for a national audience of clinicians, health plan analysts, and hospital billing staff seeking a clear description of G9813, its role in documenting 30-day post-procedure survival, and the types of insights organizations can derive when this code is present on the claim. Data not available in the input is identified explicitly elsewhere in the document.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareG9813HCPCS Level IIpost-procedure survival30-day mortalityinpatient qualityoutcome measurementhospital claimsclinical documentation

Billing Code Overview

HCPCS Level II code G9813 indicates that the patient did not die within 30 days of the procedure or during the index hospitalization. This code is a measure of short-term survival following an inpatient procedure and is used to document the absence of mortality within the defined post-procedure window.

Service Type: Mortality outcome measurement / Post-procedure quality indicator

Typical Site of Service: Inpatient hospital stay (index hospitalization) and immediate post-discharge follow-up period up to 30 days

Clinical & Coding Specifications

Clinical Context

A typical patient is an adult who has undergone a major inpatient surgical procedure (for example, coronary artery bypass grafting, colectomy, or hip arthroplasty) and survived the operation and immediate post-operative period. The patient remains hospitalized for routine post-operative monitoring and recovery, receives standard wound care, pain management, and physical therapy as indicated, and is discharged alive more than 30 days after the procedure or prior to 30 days but without death occurring during the index hospitalization. Documentation in the inpatient record includes the operative report, daily progress notes confirming stable recovery without perioperative mortality, and a discharge summary noting survival and disposition. The clinical workflow includes the surgical team documenting intraoperative events, the hospitalist or attending surgeon documenting post-operative course and any complications, nursing notes tracking vitals and wound status, and case management coordinating discharge. Billing staff assign the HCPCS Level II code G9813 to indicate that the patient did not die within 30 days of the procedure or during the index hospitalization when required for quality reporting or administrative tracking.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased Procedural Services	Use when work required to provide a service is substantially greater than typically required.

HCPCS G0490: Face-to-Face Home Health Nursing Visit

HCPCS-G0476-HPV-HIGH-RISK-NUCLEIC-ACID-DETECTION-CERVICAL-SCREENING

HCPCS G0476: HPV High-Risk Nucleic Acid Detection for Cervical Screening

HCPCS-G9835-TRASTUZUMAB-WITHIN-12-MONTHS-OF-DIAGNOSIS

HCPCS G9835: Trastuzumab Administered Within 12 Months of Diagnosis

HCPCS-G2143-POSTOPERATIVE-OSWESTRY-DISABILITY-INDEX-POOR-IMPROVEMENT

HCPCS G2143: Postoperative Oswestry Disability Index, Limited Improvement

HCPCS-G0505-COGNITION-FUNCTIONAL-ASSESSMENT-CARE-PLAN

HCPCS G0505: Cognition and Functional Assessment with Care Plan

HCPCS-G9415-MENINGOCOCCAL-VACCINE-MISSED-DOSE-ADOLESCENTS

HCPCS G9415: Missed Meningococcal Vaccine Dose, Ages 10–13

HCPCS-G2212-PROLONGED-OUTPATIENT-EVALUATION-MANAGEMENT-15-MIN

HCPCS G2212: Prolonged Outpatient Evaluation and Management

HCPCS-G2100-FRAILTY-WITH-DEMENTIA-MEDICATION-AGED-66-PLUS

HCPCS G2100: Frailty with Dementia Medication in Patients 66+

HCPCS-G8576-NO-POSTOPERATIVE-RENAL-FAILURE-DIALYSIS-NOT-REQUIRED

HCPCS G8576: No Postoperative Renal Failure/Dialysis Not Required

HCPCS-G0051-HOSPICE-PATIENT-REPORTING-CURRENT-MONTH

HCPCS G0051: Patients Under Hospice Care in Reporting Month

Showing 1–10 of 1996

Taxonomy Code	Specialty	Notes
`208100000X`	General Surgery	Most common specialty performing major inpatient surgical procedures and documenting operative outcomes.
`207P00000X`	Orthopedic Surgery	Frequently performs joint arthroplasty and fracture procedures associated with inpatient stays.
`207L00000X`	Vascular Surgery	Performs major vascular procedures with significant inpatient recovery.
`208000000X`	Cardiothoracic Surgery	Performs cardiac and thoracic operations with potential for complex post-operative care.
`208D00000X`	Critical Care Medicine	Manages critically ill post-operative patients in ICU and documents survival through hospitalization.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I21.9`	Acute myocardial infarction, unspecified	Common indication for urgent cardiac surgery; survival during post-op period is tracked.
`I63.9`	Cerebral infarction, unspecified	Patients with stroke may undergo procedures or critical care with inpatient recovery monitored for survival.
`M16.11`	Unilateral primary osteoarthritis, right hip	Typical diagnosis for hip arthroplasty with inpatient stay and post-operative survival tracking.
`M17.11`	Unilateral primary osteoarthritis, right knee	Typical diagnosis for knee arthroplasty with inpatient recovery and discharge monitoring.
`K57.30`	Diverticulosis of large intestine without perforation or abscess	Can lead to colectomy procedures and inpatient recovery where survival is documented.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99223`	Initial hospital care, typically 70 minutes or more	Used for comprehensive initial inpatient evaluation of a complex post-operative patient during index hospitalization.
`99232`	Subsequent hospital care, typically 25 minutes	Used for ongoing daily inpatient progress evaluations following major surgery.
`99238`	Hospital discharge day management; 30 minutes or less	Used to document and bill the discharge encounter when the patient leaves the index hospitalization alive.
`11042`	Debridement; skin, subcutaneous tissue and muscle	May be performed for post-operative wound complications while inpatient.
`27447`	Arthroplasty, knee, condyle and plateau	Example major inpatient surgical procedure that would precede documentation that the patient survived the hospitalization and 30-day period.
`33533`	Coronary artery bypass, single arterial graft	Example cardiac procedure with inpatient recovery where `G9813` documents absence of death within 30 days or during hospitalization.

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