Summary & Overview
HCPCS G9402: Post-Discharge Follow-Up Within 30 Days
HCPCS Level II code G9402 documents that a patient received a follow-up within 30 days after discharge. This designation supports measurement of care transitions and continuity, and is used in quality reporting and administrative billing contexts. Nationally, timely post-discharge follow-up is linked to reduced readmissions and improved patient outcomes, making documentation of such contact clinically and operationally important.
Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of the code’s clinical intent, common sites of service, and the payer landscape relevant to billing and quality programs. The publication summarizes benchmarks where available, notes common modifiers and administrative considerations, and situates the code within care transition workflows.
This report is intended for a national audience of billing professionals, care managers, and policy analysts seeking concise information on the purpose and uses of G9402. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code G9402 indicates that a patient received follow-up within 30 days after discharge. This code represents a post-discharge follow-up service intended to confirm continuity of care, assess patient status after hospitalization, and address any immediate needs related to the recent inpatient stay.
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Service type: Post-discharge follow-up
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Typical site of service: Outpatient clinic, physician office, or other ambulatory care setting where follow-up communication or visit occurs within 30 days of hospital discharge
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves an adult recently discharged from an acute inpatient admission (for example, heart failure exacerbation or pneumonia) who receives a documented follow-up visit or contact within 30 days of discharge. The patient is contacted by the discharging facility’s transitional care team or follows up in an outpatient clinic or via a qualified telehealth visit. The encounter documents medication reconciliation, review of discharge instructions, assessment of symptoms and signs of clinical deterioration, reinforcement of self-care and follow-up appointments, and any needed referrals or adjustments to therapy. The workflow typically includes discharge planning and scheduling before release, outreach by nursing or care coordination staff within 7–14 days, and a provider visit within 30 days. The service is typically reported by the hospital, outpatient clinic, home health agency, or primary care practice as evidence of continuity of care and reduced readmission risk.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when documentation supports substantially greater work than typical for a related service during the follow-up encounter. |
23 | Unusual anesthesia |