CurrentUnitedHealthcarePolicy N/A

Hospital outpatient observation services (G0378/G0379) reimbursement

Governs facility billing and reimbursement rules for hospital outpatient observation services (HCPCS G0378 and G0379) for UnitedHealthcare Community Plan Medicaid products, including state-specific exceptions and billing requirements for UB-04 claims.

Policy Summary

PayerUnitedHealthcare

PolicyHospital outpatient observation services (G0378/G0379) reimbursement

Policy CodePolicy N/A

Change TypeNo material change

Effective DateN/A

Next Review DateN/A

Key ActionReport HCPCS code G0378 under revenue code 0762 with units equal to hours in observation (rounded to nearest hour) and only consider G0378 for reimbursement when the observation period meets or exceeds 8 hours.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

8hminimum observation period (G0378)

30hNC maximum before discharge required

0762required revenue code

G0378,G0379primary HCPCS codes

state liststate-specific limits

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Observation Coverage Criteria

Observation coverage criteria

Covered when ALL of the following facility observation billing and reporting requirements are met:

Observation services must be submitted with type of bill 13X, 78X, or 85X and reported under the appropriate revenue code (0762) when applicable.

Report HCPCS code G0378 (hospital observation service, per hour) with units that represent the hours in observation care (rounded to the nearest hour).

G0378 must be reported on a single claim line using the date observation begins; do not span dates or report on separate claim lines even when observation spans multiple calendar days.

G0378 will only be considered for reimbursement when the observation period meets or exceeds 8 hours, unless a state-specific exception permits otherwise.

G0378 should only be reported when one of the following services was also provided on the same date of service or the day before the date reported for observation: Emergency Department visit (99281-99285, G0380-G0384), clinic visit (HCPCS G0463), critical care (CPT 99291), or direct referral for observation care reported with HCPCS G0379 on the same date as the G0378 observation service.

Do not report observation care (G0378) for monitoring that is inclusive of payment for a surgical, diagnostic, or therapeutic procedure; G0378 will not be reimbursed when reported in addition to procedure codes assigned CMS IOCE status indicator J1 or T.

Report HCPCS code G0379 for direct referral/admission to observation care only when there is no associated emergency department visit, hospital outpatient clinic visit (G0463), or critical care service (99291) on the day observation begins, and only when the patient was referred directly from a community physician.

G0379 is not separately payable if not submitted on the same date as G0378, or when a critical care service (99291), clinic service (G0463), emergency department visit, or a service assigned CMS IOCE status indicator T or V is reported on the same date of service.

State-specific maximum hourly limits apply; limits beyond the listed state hourly maximums will be denied (examples: KS 48, MD 24, MN 48, MS 23, MO 24, NM 48, NJ 48, NC 30, TX 48, DC 48).

Some states or payment methodologies are exempt or have modified requirements (see state exceptions); for North Carolina, observation is covered for the first 30 hours and beyond 30 hours the patient must be discharged if not admitted to inpatient status.

Observation and Facility Coding Rules

Covered HCPCS/CPT CodesHCPCS | CPTCovered

G0378	Hospital observation service, per hour
G0379	Direct admission for observation care
G0463	Hospital outpatient clinic visit
99291	Critical care, evaluation and management

Other Listed Codes / IndicatorsHCPCS / IOCE

G0739	G0739
J1	Status Indicator J1 (see IOCE J1 list)
T	Status Indicator T (see IOCE T list)
V	Status Indicator V (see IOCE V list)

Minimum hours for reimbursement

Minimum hours for reimbursementG0378 will be considered for reimbursement only when the observation period meets or exceeds 8 hours.

Reporting requirementReport G0378 under appropriate revenue code 0762 with units representing hours in observation care (rounded to nearest hour).

Line/itemizationObservation services must be reported on a single line with the date observation begins; do not span multiple claim lines or date ranges.

State-specific maximums/limits

Typical state maximumsMany states set a 48-hour maximum (e.g., KS, MN, NM, NJ, TX, WA DC).

Examples of lower state limitsMaryland (24 hours), Mississippi (23 hours), North Carolina (30 hours).

Billing and Provider Action Requirements

Billing Rule

Observation billing — report G0378 under revenue code 0762 with hourly units

Report HCPCS code G0378 (hospital observation service, per hour) under revenue code 0762 with units that represent the hours in observation care (rounded to the nearest hour). Submit observation services with type of bill 13X, 78X, or 85X and report G0378 on a single line using the date observation begins; do not span dates or use multiple claim lines. G0378 will be considered for reimbursement only when the observation period meets or exceeds 8 hours. Do not report G0378 when the observation is inclusive of payment for a surgical, diagnostic, or therapeutic procedure or when billed in addition to procedure codes assigned IOCE status indicator J1 or T.

Use revenue code 0762 and units = hours in observation (rounded to nearest hour).
Bill on a single line with the date observation begins; do not use date spans or multiple lines.
Observation reimbursable only if period ≥ 8 hours (unless a state exception applies).
Do not report when observation is included in payment for a procedure or with IOCE J1/T codes.

Key Definitions

Observation care

DefinitionObservation care is a set of short-term treatment, assessment, and reassessment services to determine whether a patient requires inpatient admission or can be discharged from the hospital.

Common useOften assigned to patients who present to the emergency department and require monitoring or treatment before a disposition decision.

Coding contextHospital outpatient observation services are reported with CMS HCPCS codes G0378 and G0379 per CMS guidance for consistent facility coding and billing.

G0378

Code and descriptionG0378 — hospital observation service, reported per hour; units represent hours in observation care (rounded to the nearest hour).

Billing instructionsReport G0378 under the appropriate revenue code (0762) with units equal to hours in observation; report on a single line with the date observation begins.

Policy Summary

PayerUnitedHealthcare

PolicyHospital outpatient observation services (G0378/G0379) reimbursement

Policy CodePolicy N/A

Change TypeNo material change

Effective DateN/A

Next Review DateN/A

SourceLink

On This Page

Effect of limitsLimits beyond the state hourly maximums will be denied; some states have specific exemptions or different billing requirements (see state exceptions).

Billing Rule

Use G0379 for direct admissions to observation (must coincide with G0378)

Report HCPCS code G0379 for direct referral/admission to observation care when there is no associated ED visit, hospital outpatient clinic visit (G0463), or critical care (99291) on the day observation begins and the patient was referred directly from a community physician. G0379 must be submitted on the same date of service as G0378 and is not separately payable if a critical care, clinic, ED visit, or a service with IOCE status indicator T or V is reported that day.

G0379 is valid only for direct referrals/admissions (no ED/clinic/critical care same day).
G0379 is not reimbursable unless billed the same date as G0378.
G0379 is not separately payable when CPT 99291, HCPCS G0463, ED visit, or IOCE T/V codes are present.

Reimbursement conditionG0378 will only be considered for reimbursement when the observation period meets or exceeds 8 hours.

G0379

Code and purposeG0379 — reported for direct referral/admission to observation care when there is no associated emergency department visit, hospital outpatient clinic visit (G0463), or critical care service (99291) on the day observation begins.

Reporting relationship to G0378G0379 must be reported on the same date of service as G0378; direct admission is not reimbursable if not submitted on same date as G0378.

Non-payable situationsG0379 is not separately payable when a critical care service (99291), clinic service (G0463), an emergency department visit, or services assigned IOCE status indicator T or V are reported on the same date.