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    v1.0.28
    OpenPayerBilling CodesNational Codes Established for State Medicaid AgenciesHCPCS hcpcs-t1029-comprehensive-lead-investigation-residence
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    HCPCS Level II T1029: Comprehensive Environmental Lead Investigation (Per Dwelling)

    HCPCS Level II code T1029 describes a comprehensive environmental lead investigation for a dwelling that does not include laboratory analysis; the service involves on-site assessment and evaluation of a residence for lead hazards and related environmental factors and is typically performed as an environmental inspection or home visit in residential or housing-related settings.

    For related coverage guidance, see recent payer policy updates: Interferential Stimulation Devices (for home use), Durable Medical Equipment (DME): Tumor Treating Fields (Alternating Electric Field Therapy) Medical Guideline, Durable Medical Equipment (DME): Bone Growth Stimulators Medical Guideline.

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    Clinical & Coding Specifications

    Clinical Context

    A public health lead investigator is dispatched to a residential dwelling after a child aged 1–6 years is identified with an elevated blood lead level on screening. The investigator conducts a comprehensive environmental lead investigation of the home, which includes a room-by-room visual inspection of paint, dust, soil, plumbing, and consumer products; structured interviews with caregivers about renovation history and lead exposure sources; documentation of interior and exterior potential lead hazards; photographic documentation; and preparation of a written report of findings and recommendations. The visit does not include laboratory analysis of samples (surface wipe or paint chip analysis), which would be billed separately. Typical site of service is the patient’s home or dwelling. Typical workflow: referral from pediatric clinic or public health department → scheduling and consent from occupant → arrival at dwelling and safety assessment → systematic inspection and data collection (room-by-room) → digital photographs and checklist completion → report generation and communication with ordering public health authority or clinician.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    99341Home visit for evaluation and management of a new patient, typically 20 minutesMay be billed when a clinician performs a medical home visit related to lead exposure evaluation alongside the environmental investigation.
    99347Home visit for E/M of an established patient, typically 20 minutesUsed when an established patient receives a home-based clinical evaluation in conjunction with the environmental inspection.
    36415Collection of venous blood by venipuncturePerformed before or after the investigation to obtain blood lead levels for the affected child or household members; lab billing separate.
    99000Handling and/or conveyance of specimen for transfer from patient to laboratoryMay be used when specimens collected during a home visit are transported to a laboratory (billing rules vary by payer).
    99401Preventive medicine counseling, individual, approximately 15 minutesUsed for counseling caregivers on lead exposure prevention and home remediation steps during or after the investigation.

    Related Modifiers

    8 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…
    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…
    54Modifier ‑54 (“Surgical care only”) is appended to a CPT surgical procedure when the reporting surgeon performs the intraoperative (surgical) component but does not furnish the preoperative and/or…- Use modifier -54 when the reporting surgeon provided only the intraoperative (surgical) component of a procedure and preoperative and/or postoperative management has been or will be provided by…
    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…
    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…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    261QM2500XMedical Specialty Clinic/CenterAn entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical s…
    207Q00000XFamily Medicine PhysicianFamily Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadt…
    207K00000XAllergy & Immunology PhysicianAn allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Select…
    332900000XNon-Pharmacy Dispensing SiteA site other than a pharmacy that dispenses medicinal preparations under the supervision of a physician to patients for self-administration. (e.g. phy…
    282NC0060XCritical Access HospitalHospitals · General Acute Care Hospital
    207VC0300XComplex Family Planning PhysicianA complex family planning physician specializes in the diagnosis and treatment of individuals with complex reproductive needs. These physicians are ex…
    1835E0208XEmergency Medicine PharmacistA licensed pharmacist who has demonstrated specialized knowledge and skill in the care for patients at the bedside in emergency medicine settings.
    364SI0800XInformatics Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers · Clinical Nurse Specialist

    Related Payer Policy Updates

    Specialty: Durable Medical Equipment (DME)1 / 2

    5 rows

    PolicyPayerEffective Date
    Interferential Stimulation Devices (for home use)Moda Health2026-10-01
    Durable Medical Equipment (DME): Tumor Treating Fields (Alternating Electric Field Therapy) Medical GuidelineWPS Health Insurance2026-10-01
    Durable Medical Equipment (DME): Bone Growth Stimulators Medical GuidelineWPS Health Insurance2026-10-01
    General Durable Medical Equipment (DME) Medical GuidelineWPS Health Insurance2026-10-01
    Prior Authorization for Durable Medical Equipment (DME)Blue Cross Blue Shield - Rhode Island2026-10-01

    Related Codes

    HCPCS-LEVEL-II-T1030-NURSING-CARE-HOME-REGISTERED-NURSE-PER-DIEM

    HCPCS Level II T1030: Nursing Care in Home by Registered Nurse, Per Diem

    HCPCS-LEVEL-II-T2014-PREVOCATIONAL-HABILITATION-PER-DIEM

    HCPCS Level II T2014: Habilitation, Prevocational, Waiver; Per Diem

    HCPCS-LEVEL-II-T2020-DAY-HABILITATION-WAIVER-PER-DIEM

    HCPCS Level II T2020: Day Habilitation, Waiver; Per Diem

    HCPCS-LEVEL-II-T2047-HABILITATION-PREVOCATIONAL-WAIVER

    HCPCS Level II T2047: Habilitation Prevocational Waiver, per 15 minutes

    HCPCS-LEVEL-II-T4535-DISPOSABLE-INCONTINENCE-LINER-PAD

    HCPCS Level II T4535: Disposable Incontinence Liner/Pad

    HCPCS-LEVEL-II-T4538-REUSABLE-DIAPER-PER-DIAPER

    HCPCS Level II T4538: Reusable Diaper, Each

    HCPCS-T1000-PRIVATE-DUTY-LICENSED-NURSING-15-MIN

    HCPCS Level II T1000: Private Duty Licensed Nursing, up to 15 Minutes

    HCPCS-T1001-NURSING-ASSESSMENT-EVALUATION

    HCPCS Level II T1001: Nursing Assessment/Evaluation

    HCPCS-T1002-RN-SERVICES-15-MINUTES

    HCPCS T1002: RN Services, Up to 15 Minutes

    HCPCS-T1003-LPN-LVN-SERVICES-15-MINUTES

    HCPCS Level II T1003: LPN/LVN Services, Up to 15 Minutes

    Showing 1–10 of 113

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    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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