CurrentUnitedHealthcarePolicy CS182.I

Elective Inpatient Services

Defines medical necessity criteria for planned elective inpatient admissions for surgeries or procedures, listing patient medical conditions, procedure-related factors, need for pre/post-operative monitoring, and procedural events that justify inpatient admission. Does not apply to specified states and excludes obstetric care during pregnancy/childbirth/post-partum.

Policy Summary

PayerUnitedHealthcare

PolicyElective Inpatient Services

Policy CodePolicy CS182.I

Change TypeApplication: states added

Effective DateJan 1, 2025

Next Review Date

Key ActionProviders must document that one or more listed medical conditions, procedural risk factors, need for pre/post-op monitoring, or procedural events justify inpatient admission and reference applicable criteria (e.g., MELD, GFR, ASA class, AHI, AKI definitions).

POLICY UPDATE CHANGES

Policy language updated to indicate the policy does not apply to the states of Idaho and Kansas.

Routine review on 01/01/2025 with no change to coverage guidelines; previous version CS182.H archived.

10Listed medical/clinical criteria items

11Procedure/event justifications listed

10States with separate policies (excluded)

Coverage Summary

This policy defines medical necessity criteria for planned elective inpatient admissions for surgical procedures, listing patient medical conditions, procedure-related factors, the need for pre- or post-operative monitoring, and procedural events that may justify an inpatient stay. It is intended to assist in interpreting UnitedHealthcare standard benefit plans and references InterQual and professional society guidance to inform determinations about appropriate inpatient versus outpatient settings.

Before applying this policy, check applicable federal, state, or contractual benefit plan coverage because those requirements govern if they differ from the standard benefit plan. This Medical Policy does not apply in the following states; refer to the state-specific policy/guideline for those states: Idaho, Indiana, Kansas, Kentucky, Louisiana, New Jersey, New Mexico, Ohio, Pennsylvania, and Tennessee.

Provider Actions

Documentation Required

Document indication for inpatient admission

Providers must document that one or more of the listed medical conditions, procedural risk factors, needs for pre-/post-operative monitoring, or procedural events justify inpatient admission. Documentation should reference the applicable objective criteria and definitions when present — for example MELD score (> 8) for advanced liver disease; GFR (≤ 30 mL/min) for severe renal disease; ASA Physical Status classification (ASA III or greater) for anesthetic risk; Apnea Hypopnea Index thresholds for sleep apnea (AHI 15–30 moderate; > 30 severe); and the Acute Kidney Injury (AKI) definition (increase in serum creatinine ≥ 0.3 mg/dL in 48 hours, ≥1.5× baseline in 7 days, >50% reduction in eGFR, or urine output < 0.5 mL/kg/hr for 6 hours).

Reference MELD Score > 8 for advanced liver disease
Reference GFR ≤ 30 mL/min for severe renal disease
Reference ASA class III or greater for anesthetic risk
Reference AHI thresholds: moderate 15–30; severe > 30
Reference AKI definition per KDIGO (creatinine and urine output criteria)

Prior Authorization

Check state-specific policy and benefit plan

Before applying this policy, verify the applicable federal, state, or contractual benefit plan coverage because those requirements govern if they conflict with this policy. This Medical Policy does not apply in certain states; for those members use the state-specific Elective Inpatient Services policy versions (listed below).

Idaho — use Elective Inpatient Services (for Idaho Only)
Indiana — use Elective Inpatient Services (for Indiana Only)
Kansas — use Elective Inpatient Services (for Kansas Only)
Kentucky, Louisiana, New Jersey, New Mexico, Ohio, Pennsylvania, Tennessee — use respective state-specific Elective Inpatient Services policy versions

Background, Evidence & Definitions

UnitedHealthcare uses InterQual criteria and guidance from professional societies (for example, ACC/AHA, ASA, and GINA) to inform determinations about whether elective surgeries and procedures are most appropriately performed in an inpatient versus outpatient setting. The policy incorporates InterQual-derived objective criteria (medical conditions, anesthetic risk, procedural complexity, need for pre/post-operative monitoring, and procedural events) and references society guidance for additional clinical context.

This policy is intended to assist in interpreting standard UnitedHealthcare benefit plans; however, federal, state, or contractual benefit plan requirements take precedence where they differ. Additionally, the policy explicitly does not apply to an obstetric member during pregnancy, childbirth, or the post-partum period and does not apply in the listed states (see state-specific policies).

Source	Reference
InterQual	Click here to view the InterQual ® criteria; used as primary criteria for medically necessary elective inpatient admissions including listed medical conditions, procedure-related factors, and procedural events.
ACC/AHA 2014 guideline	Fleisher et al., 2014. 2014 guideline on perioperative cardiovascular evaluation and management of patients undergoing noncardiac surgery — referenced for perioperative cardiovascular evaluation and decisions about optimal location and timing of surgery.
ASA 2014 and 2020	ASA Task Force 2014 perioperative management of patients with obstructive sleep apnea and ASA Physical Status Classification (2020) — referenced for ASA classification, OSA considerations, and factors to determine inpatient vs outpatient setting.
GINA 2023	Global Initiative for Asthma (GINA) 2023 report — referenced noting perioperative risk considerations for asthma and recommendations to optimize asthma control pre-operatively for elective surgery.

Definitions

Acute Kidney Injury: Increase in the serum creatinine value of ≥ 0.3 mg/dL in 48 hours OR increase in serum creatinine of ≥ 1.5 times baseline within the prior 7 days OR reduction of more than 50% in estimated glomerular filtration rate from baseline OR urine volume < 0.5 mL/kg/hour for 6 hours (KDIGO, 2012).

Apnea Hypopnea Index (AHI): The number of apneas plus the number of hypopneas during the entire sleeping period, times 60, divided by total sleep time in minutes; unit: event per hour (AASM Scoring Manual, 2020).

Hemodynamic Instability: Vital sign abnormality not readily corrected by appropriate treatment as indicated by one or more of: systolic blood pressure < 90 mm Hg or decrease in systolic blood pressure > 40 mm Hg; oliguria with treatment goal of 0.5 mL/kg/hour urine output; mean arterial pressure (MAP) < 65 mm Hg; new abnormal capillary refill (greater than 3 seconds); altered level of consciousness; shortness of breath.

ASA Physical Status Classification: The American Society of Anesthesiologists physical status classification system (ASA I–VI) describing patient's pre-anesthesia health status; ASA III or greater noted as a risk factor.

OpenPayer

Elective Inpatient Services

Coverage Summary

Medical-Necessity Criteria

Provider Actions

Coding

Background, Evidence & Definitions

Revision History