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    v1.0.28
    OpenPayerPolicy UpdatesReimbursement/Payment PolicyBCBS Vermont Observation Coverage Update | OpenPay…
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    CurrentBlue Cross Blue Shield of VermontPolicy CPP_07

    Observation Services

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    This policy governs payment for medically necessary observation services, including duration limits, exclusions for services incidental to inpatient stays or other outpatient services, and charge limits. It applies to providers billing Blue Cross Blue Shield of Vermont.

    Policy Summary
    PayerBlue Cross Blue Shield of Vermont
    PolicyObservation Services
    Policy CodePolicy CPP_07
    Change TypeCoding and administrative update
    Effective DateDecember 1, 2026
    Last ReviewAug 1, 2014
    Next Review DateAugust 20, 2028
    Key ActionSubmit observation services for payment only when the services are medically necessary.
    SourceLink
    POLICY UPDATE CHANGES

    The coding table was updated to replace deleted observation and inpatient-service codes with codes 99221-99223, 99238, and 99239 for eligible payment and codes 99231-99233 for services not eligible for payment.

    The window before separately billing services rendered before inpatient admission was changed from 48 hours to 72 hours for alignment between discount-off-charge and DRG payment arrangements.

    Language defining total time was added.

    The policy was moved to a new template and underwent language and grammatical edits for clarification.

    The policy name changed from "Observation Services and Other Services Incidental to Inpatient Admission" to "Observation Services."

    48 hoursMaximum observation-services payment period

    OpenPayer is powered by Trek Health's payer performance platform. Trek continuously ingests, validates, and normalizes Transparency in Coverage data alongside payer policies and other commercial payer data to create a structured payer intelligence foundation. OpenPayer uses this foundation to deliver personalized search results, dynamically generated policy pages, and tailored policy monitoring based on each user's payers, specialties, billing codes, and areas of interest. The same intelligence powers broader payer performance workflows, including reimbursement benchmarking, contract evaluation, payer negotiations, and financial decision-making.

    Medically necessaryRequired condition for payment
    Not incidentalObservation care must not be incidental
    Daily semi-private rateMaximum charge basis
    2Related payer policies identified

    Observation Services Payment Criteria

    Observation Services Payment Criteria

    Blue Cross VT will consider payment for observation services when ALL of the following criteria are met:

    ALL of the following

    • Observation services are medically necessary.
    • Observation services do not exceed 48 hours.≤ 48 hours
    • The observation care is not incidental to an inpatient stay or other outpatient service.
    • Charges do not exceed the daily semi-private medical room and board rate.

    Coding and Payment Parameters

    Codes eligible for paymentCPTCovered
    99221Eligible for payment; descriptor not provided in the document
    99222Eligible for payment; descriptor not provided in the document
    99223Eligible for payment; descriptor not provided in the document
    99238Eligible for payment; descriptor not provided in the document
    99239Eligible for payment; descriptor not provided in the document
    Codes not eligible for paymentCPTNot Covered
    99231Not eligible for payment; descriptor not provided in the document
    99232Not eligible for payment; descriptor not provided in the document
    99233Not eligible for payment; descriptor not provided in the document
    Deleted codesCPT
    99217Deleted and replaced in the coding update
    99218Deleted and replaced in the coding update
    99219Deleted and replaced in the coding update
    99220Deleted and replaced in the coding update
    99224Deleted and replaced in the coding update
    99225Deleted and replaced in the coding update
    99226Deleted and replaced in the coding update
    Codes with revised descriptorsCPT
    99234Descriptor revised in the coding update
    99235Descriptor revised in the coding update
    99236Descriptor revised in the coding update
    Observation Services Duration
    Maximum observation-services durationUp to 48 hours
    Payment conditionThe service must be medically necessary
    Separate-service requirementObservation care must not be incidental to an inpatient stay or other outpatient service
    Observation Services Charge Basis
    Maximum charge basisDaily semi-private medical room and board rate
    Charge requirementCharges should not exceed the daily semi-private medical room and board rate
    Applicable service

    Provider Billing Actions

    Documentation Required

    Document medical necessity

    Submit observation services for payment only when the service is medically necessary.

    Billing Rule

    Avoid incidental-service billing

    Do not bill observation care separately when it is incidental to an inpatient stay or another outpatient service.

    Billing Rule

    Apply observation billing limits

    Observation Services

    Observation Services
    DefinitionObservation services are services payable for up to 48 hours
    Medical necessityServices must be medically necessary
    Non-incidental requirementObservation care must not be incidental to an inpatient stay or another outpatient service
    Charge limitCharges should not exceed the daily semi-private medical room and board rate
    Policy Summary
    PayerBlue Cross Blue Shield of Vermont
    PolicyObservation Services
    Policy CodePolicy CPP_07
    Change TypeCoding and administrative update
    Effective DateDecember 1, 2026
    Last ReviewAug 1, 2014
    Next Review DateAugust 20, 2028
    Key ActionSubmit observation services for payment only when the services are medically necessary.
    SourceLink
    On This Page
    Observation Services Payment CriteriaCoding and Payment ParametersProvider Billing ActionsObservation Services
    Observation services
    Pre-Inpatient Separate-Billing Window
    Separate-billing window72 hours before inpatient admission
    Services covered by the windowServices rendered prior to inpatient admission
    Payment arrangementsApplies for alignment between hospitals paid on a discount-off-charge basis and hospitals paid on a DRG basis

    Limit observation-services billing to no more than 48 hours, and ensure charges do not exceed the daily semi-private medical room and board rate.

    • Maximum observation-services duration: 48 hours
    • Maximum charge basis: daily semi-private medical room and board rate