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    v1.0.30
    OpenPayerBilling CodesCognitive Assessment and Care Plan ServicesCPT cpt-99485-pediatric-critical-care-transport-supervision
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    CPT 99485: Supervision of Interfacility Transport for Critically Ill or Injured Infant

    CPT code 99485 describes physician supervision of interfacility transport for a critically ill or injured child 24 months of age or younger for up to 30 minutes, including pre-transport communication with the transport team, continuous communication during transport, interpretation of patient data relayed by the team, and communication upon arrival; this is an acute critical care transport supervision service typically provided in the hospital-to-hospital transport setting and documented as a time-based physician supervisory service during pediatric critical care transfers.

    For related coverage guidance, see recent payer policy updates: Ambulance and Medical Transport Services (Ground, Air and Water) Corporate Medical Policy, Emergency Air/Water Ambulance Services Medical Guideline, Non-Emergent Ambulance Services.

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    Clinical & Coding Specifications

    Clinical Context

    A critically ill or injured infant age 24 months or younger requires interfacility transfer from a community hospital to a pediatric tertiary care center for advanced care. Example scenario: a 6-month-old with respiratory failure from bronchiolitis requiring escalation to pediatric intensive care and possible mechanical ventilation. The PICU attending physician at the receiving center is contacted before transport, reviews the infant's clinical status and monitoring data with the sending team and transport crew, and provides oversight of resuscitation and stabilization measures. During the ground or air transport (duration up to 30 minutes under this CPT description), the receiving physician communicates with the transport team, interprets transmitted patient data (vital signs, oxygenation, ventilator parameters, bedside glucose, point-of-care labs), and advises clinical interventions. Upon arrival at the receiving facility the supervising physician receives a handoff, verifies patient status, and documents involvement in the supervised transport. Typical workflow includes pre-transfer discussion and acceptance, real-time remote supervision during transport, and arrival/handoff documentation in the receiving facility medical record. Typical site of service is interfacility transport (ground ambulance or air transport) between acute care hospitals, with the receiving physician usually located at the tertiary pediatric hospital (PICU or ED). Service type: Interfacility critical care transport supervision for infants (physician supervision).

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    99485Critical care transport supervision of a child 24 months or younger, up to 30 minutesPrimary code describing the supervising physician's role during interfacility transfer (the focus of this document)
    99291Critical care, evaluation and management of the critically ill or critically injured patient; first 30–74 minutesMay be reported when the receiving physician provides in-person critical care evaluation at the receiving facility that meets critical care time and documentation requirements in addition to transport supervision
    99238Hospital discharge day management; 30 minutesMay occur after arrival if the supervising physician documents discharge planning or transfer-of-care activities following transport
    99466Interfacility transport of critically ill or critically injured patient; medical direction of interfacility transport by a physician (per 15 minutes)When the physician provides medical direction for transport services in a per-15-minute format; relates to extended or differently timed supervisory roles
    A0435Ground mileage (ambulance)Ambulance transport billing codes often accompany interfacility transfers; documents ground transport mileage related to the patient move
    A0431Advanced life support, level 1 (ALS) non-emergency transportTransport resource codes used by ambulance providers during interfacility movement when ALS care is provided

    Related Modifiers

    10 rows

    ModifierDescriptionWhen to Use
    22Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
    23Modifier -23 (Unusual Anesthesia) is used on anesthesia service CPT codes when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia…- Use modifier -23 only on anesthesia CPT codes (00100–01999) when a procedure that normally requires no anesthesia or only local anesthesia must be performed under general anesthesia because of…
    25CPT modifier 25 indicates that on the same day as another procedure or service, the same physician or other qualified health care professional provided a significant, separately identifiable…- When to apply: Use modifier 25 only on an E/M code to indicate the same provider delivered a significant, separately identifiable E/M service on the same day as another procedure or service — i.e.,…
    52Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
    53Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
    59Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    78CPT modifier -78 indicates an unplanned, related return to the operating or procedure room by the same provider during the global postoperative period. It is appended when treatment for a…- Use modifier -78 when an unplanned, related complication during the original procedure’s global postoperative period requires the patient to return to a formal operating or procedure room and the…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…
    82Modifier 82 is appended to a surgical CPT code to indicate that an attending physician acted as an assistant because a qualified resident surgeon was unavailable. In teaching hospitals it documents…- When to use: Append modifier 82 in teaching-hospital settings to indicate a physician served as an assistant surgeon because a qualified resident surgeon was unavailable (includes situations where…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    208000000X
    2080P0207X
    207RH0000X
    2084P0800X
    2278P3800X
    171M00000X
    2471V0105X
    122400000X

    Related Payer Policy Updates

    Specialty: Emergency & Medical Transportation1 / 2

    10 rows

    PolicyPayerEffective Date
    Ambulance and Medical Transport Services (Ground, Air and Water) Corporate Medical Policybcbsvermont2026-10-01
    Emergency Air/Water Ambulance Services Medical GuidelineWPS Health Insurance2026-10-01
    Non-Emergent Ambulance ServicesConnectiCare2026-09-11
    Fixed Wing Air Ambulance TransportCigna2026-08-15
    Air AmbulanceAmbetter Georgia2026-08-01
    Ambulance Services (for New Mexico Only)UnitedHealthcare2026-08-01
    Ambulance Services (for Tennessee Only)UnitedHealthcare2026-08-01
    Clinical Policy: Air AmbulanceAmbetter Nevada2026-08-01
    Air AmbulanceCentene2026-08-01
    Clinical Policy: Air AmbulanceArizona Complete Health2026-08-01

    Related Codes

    CPT-99483-COMPREHENSIVE-COGNITIVE-ASSESSMENT-GERIATRIC

    CPT 99483: Comprehensive Cognitive Assessment and Care Planning

    CPT-99484-BEHAVIORAL-HEALTH-CARE-COORDINATION-CLINICAL-STAFF

    CPT 99484: Behavioral Health Care Management by Clinical Staff

    CPT-99486-PEDIATRIC-INTERFACILITY-TRANSPORT-SUPERVISION-30MIN

    CPT 99486: Supervision of Critical Pediatric Transport, ≤24 Months

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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