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    v1.0.30
    OpenPayerBilling CodesOther Preventive Medicine ServicesCPT cpt-99429-preventive-medicine-service-unspecified
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    CPT 99429: Preventive Medicine Service, Unspecified

    CPT code 99429 reports a preventive medicine service, not otherwise specified, used when no specific preventive medicine CPT code applies; the service type is preventive medicine counseling or evaluation, typically performed in an outpatient clinic or primary care office setting and documented as a distinct preventive visit for counseling, risk assessment, or anticipatory guidance.

    For related coverage guidance, see recent payer policy updates: Pediatric Neurodevelopmental and Autism Spectrum Disorder (ASD) Screening Corporate Medical Policy, Inhaled Nitric Oxide Therapy (for New Mexico Only), Inhaled Nitric Oxide Therapy (for North Carolina Only).

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    Clinical & Coding Specifications

    Clinical Context

    A patient presents for a preventive medicine visit that does not have a more specific preventive medicine code. Typical patients are asymptomatic adults or children seeking routine health maintenance, counseling, or risk assessment. Example scenario: a 42-year-old established patient visits their primary care clinic for an annual preventive medicine visit focused on lifestyle counseling, vaccination review, screening coordination, and anticipatory guidance. The clinical workflow includes registration, pre-visit vitals and screening questionnaires, a focused preventive medicine history (family history, social determinants, and risk factors), a targeted physical examination as indicated, counseling on diet, exercise, substance use, and mental health, orders for age-appropriate screening tests or immunizations, documentation of counseling and shared decision-making, and scheduling of follow-up preventive services.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    99381Initial comprehensive preventive medicine evaluation and management of an individual, new patient; infants, to 1 yearAlternative specific code for a new patient preventive visit for infants; use instead of an unspecified preventive code when applicable
    99391Periodic comprehensive preventive medicine re-evaluation and management of an individual, established patient; infant through 1 yearSpecific periodic preventive code for established infant patients that may be used instead of an unspecified preventive code
    99401Preventive medicine counseling and/or risk factor reduction intervention(s) provided to an individual (15 minutes)Use when focused counseling is the primary service and can be reported in addition to the preventive visit when payer rules allow
    99406Smoking and tobacco use cessation counseling visit, intermediate, greater than 3 minutes up to 10 minutesCommon counseling service that may be provided during a preventive visit and billed per payer rules
    90471Immunization administration (per vaccine)Immunizations given during a preventive medicine visit are commonly administered and billed separately

    Related Modifiers

    7 rows

    ModifierDescriptionWhen to Use
    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.,…
    26Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
    27Modifier 27 indicates a separate, subsequent outpatient hospital E/M service provided to the same patient on the same date by a different provider in a hospital outpatient setting. It is a…- Use modifier -27 on facility (hospital outpatient/ambulatory service center) claims to report a subsequent, separate, and distinct outpatient E/M service provided to the same patient on the same…
    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…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    56Modifier ‑56 indicates the reporting provider furnished only the preoperative management for a surgical procedure and did not perform the intraoperative or postoperative care. It is used in…- Use Modifier -56 when a provider performs only the preoperative management in a split‑care situation (one physician manages preop care while a different physician performs the intraoperative…

    Related Provider Taxonomies

    8 rows

    Taxonomy Code
    207Q00000X
    207R00000X
    208000000X
    207L00000X
    261QU0200X
    322D00000X
    2279G0305X
    243U00000X

    Related Payer Policy Updates

    Specialty: Pediatrics/Neonatology1 / 3

    10 rows

    PolicyPayerEffective Date
    Pediatric Neurodevelopmental and Autism Spectrum Disorder (ASD) Screening Corporate Medical Policybcbsvermont2026-12-01
    Inhaled Nitric Oxide Therapy (for New Mexico Only)UnitedHealthcare2026-10-01
    Inhaled Nitric Oxide Therapy (for North Carolina Only)UnitedHealthcare2026-10-01
    Inhaled Nitric Oxide Therapy (for Pennsylvania Only)UnitedHealthcare2026-10-01
    Inhaled Nitric Oxide Therapy (for Kentucky Only)UnitedHealthcare2026-10-01
    Clinical Policy: NICU Apnea Bradycardia GuidelinesAmbetter Nevada2026-10-01
    DRG Newborn Inpatient Stays - FacilityBlue Cross Blue Shield - Maine2026-10-01
    Pediatric Preventive ScreeningOscar Health2026-10-01
    Infant Nutritional FormulaCigna2026-09-15
    Pediatric Preventive ScreeningBlue Cross Blue Shield - New Mexico2026-09-04

    Related Codes

    CPT-99422-ONLINE-DIGITAL-EVALUATION-MANAGEMENT-ESTABLISHED-PATIENT-11-20-MINUTES

    CPT 99422: Online Digital E/M for Established Patient, 11–20 Minutes

    CPT-99423-ONLINE-DIGITAL-EVALUATION-ESTABLISHED-PATIENT-21-PLUS-MIN

    CPT 99423: Online Digital E/M for Established Patient, 21+ Minutes

    CPT-99427-COMPLEX-CHRONIC-CARE-MANAGEMENT-CLINICAL-STAFF-30-MIN

    CPT 99427: Complex Chronic Care Management, Additional 30 Minutes

    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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