Summary & Overview

HCPCS G9286: Antibiotic Regimen Prescribed Within 10 Days After Symptom Onset

HCPCS Level II code G9286 documents an antibiotic regimen prescribed within 10 days after onset of symptoms. Nationally, timely initiation of antibiotics can be clinically relevant for certain infections and for quality measurement where prompt treatment is an indicator of appropriate care. Clear documentation using G9286 supports consistent coding and can inform performance measurement and care coordination efforts.

Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the code’s clinical meaning and service context, followed by typical payer considerations, common modifiers and coding practice notes, and where available, benchmarking and policy updates that affect coverage and claims processing nationally. The publication provides practical coding context for clinicians, billers, and compliance staff, including expected sites of service and how the code fits into documentation workflows.

The content highlights what to expect when G9286 is used on a claim, how it relates to outpatient antibiotic management, and summarizes payer coverage patterns and policy themes relevant to timely antibiotic prescribing. Data not available in the input is noted where applicable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareG9286HCPCS Level IIantibiotic regimenoutpatient careambulatory servicesprescription managementquality measuretimely treatment

Billing Code Overview

HCPCS Level II code G9286 describes an antibiotic regimen prescribed within 10 days after onset of symptoms. This code represents documentation of timely initiation of an antibiotic course following symptom onset.

Service type: Prescription and medication management related to an antibiotic regimen initiated in the acute phase of illness.
Typical site of service: Outpatient clinic, urgent care, primary care office, or other ambulatory settings where antibiotics are prescribed shortly after symptom onset.

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A typical patient is an adult presenting to primary care or urgent care within 10 days of onset of respiratory or urinary symptoms consistent with a bacterial infection (for example: acute sinusitis, acute otitis media, community-acquired pneumonia, or acute uncomplicated cystitis). The clinician performs an evaluation including focused history and physical exam, documents symptom onset date, assesses severity and allergy history, and determines that an antibiotic regimen is indicated. The clinician prescribes an oral or short-course parenteral antibiotic regimen to be initiated within 10 days of symptom onset, documents the medication name, dose, route, duration, and instructions, and provides counseling about adverse effects and follow-up. Typical sites of service include outpatient clinic, urgent care clinic, emergency department (if initial presentation is more acute), and observation units when clinically indicated. Common workflow steps: triage and vital signs, clinician evaluation, diagnostic testing as indicated (rapid antigen tests, point-of-care urinalysis, chest X-ray if pneumonia suspected), documentation of onset date and clinical justification, prescription entry in the EHR or paper script, and discharge instructions with return precautions and follow-up plan. Payers involved may include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, BUCA, and Medicare for eligible beneficiaries.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when work required to document or manage the infection and antibiotic regimen is substantially greater than typical, and documentation supports increased work.
`23`	Unusual anesthesia	Rarely used; only applicable if unusual anesthesia related to antibiotic administration was required.
`52`	Reduced services	Use when antibiotic regimen service was partially reduced or not completed as originally planned.
`53`	Discontinued procedure	Use when antibiotic administration was initiated but discontinued due to patient reaction or change in clinical condition.
`54`	Surgical care only	Not typically applicable; would be used if antibiotic regimen is billed separately from ongoing surgical care.
`55`	Postoperative management only	Not typically applicable; use if antibiotic regimen is part of postoperative follow-up billed separately.
`56`	Preoperative management only	Use when antibiotic regimen is provided solely as preoperative prophylaxis and billed separately.
`62`	Two surgeons	Use when two qualified providers share responsibility for a complex antibiotic administration procedure requiring co-surgeons (rare for this service).
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services for assistant at surgery	Use when an advanced practice clinician assists with procedural antibiotic administration in a surgical setting.
`CO`	Cast care and fitting	Not typically applicable to antibiotic regimen prescribing; included here only if related cast care services are billed concurrently.

Taxonomy Code	Specialty	Notes
`207Q00000X`	Family Medicine	Most common specialty prescribing outpatient antibiotic regimens for acute infections.
`208D00000X`	General Internal Medicine	Frequently evaluates and prescribes antibiotics for adult patients with acute infections.
`363L00000X`	Urgent Care	Urgent care clinicians commonly prescribe timely antibiotics within the 10-day symptom window.
`208000000X`	Emergency Medicine	Emergency physicians prescribe and sometimes administer antibiotics for acute presentations.
`1835D0002X`	Infectious Disease	Consulted for complex, refractory, or atypical infections when specialized antibiotic regimens are required.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`J01.90`	Acute sinusitis, unspecified	Acute bacterial sinusitis commonly prompts an antibiotic regimen within 10 days of symptom onset when bacterial etiology suspected.
`J02.9`	Acute pharyngitis, unspecified	Bacterial pharyngitis (e.g., streptococcal) is a common indication for timely antibiotic prescribing when supported by testing.
`J18.9`	Pneumonia, unspecified organism	Community-acquired pneumonia often requires prompt antibiotic therapy initiated soon after symptom onset.
`N39.0`	Urinary tract infection, site not specified	Acute uncomplicated cystitis and other UTIs are typical reasons for prescribing antibiotics within the early symptom window.
`H66.90`	Otitis media, unspecified, unspecified ear	Acute otitis media frequently leads to antibiotic prescriptions in appropriate clinical contexts.
`A49.9`	Bacterial infection, unspecified	Used when a bacterial infection is documented but site or organism is unspecified and an antibiotic regimen is prescribed.
`L03.90`	Cellulitis, unspecified	Skin and soft tissue infections such as cellulitis commonly require antibiotic regimens initiated promptly.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99213`	Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutes	Common E/M visit during which an antibiotic regimen is evaluated and prescribed for acute infection.
`99214`	Office or other outpatient visit for an established patient, typically 25 minutes	Used when the visit requires moderate to high complexity decision-making to prescribe an antibiotic regimen and document clinical justification.
`87804`	Infectious agent antigen detection by immunoassay technique, (e.g., rapid strep)	Point-of-care testing frequently used to support decision to prescribe antibiotics for pharyngitis.
`87088`	Culture, urine, bacterial, screening by automated system	Urine culture often obtained when urinary tract infection diagnosis is suspected and guides antibiotic selection.
`71045`	Radiologic examination, chest; single view, frontal	Chest X-ray ordered when community-acquired pneumonia is suspected to support antibiotic therapy choice.