The pharmacist's guide to billable clinical service codes.

How Medicare Part B works for pharmacists

Pharmacists do not yet have universal provider status under federal Medicare Part B. What pharmacists do have is a growing set of mechanisms to bill clinical services — incident-to a supervising physician, through Rural Health Clinic and FQHC pathways, under collaborative practice agreements, through state-level Medicaid expansions, and through commercial-payer contracts that increasingly include pharmacist clinical services. The codes below work today; the question is which billing posture your pharmacy adopts.

The 2026 Medicare Physician Fee Schedule expanded the list of services pharmacists can deliver under general supervision, especially for chronic care management and behavioral health. The Rural Health Transformation Program (covered in our RHTP brief) pushes this further state by state. The codes are stable. What changes is who can submit them and under what supervision.

Throughout this guide, "pharmacist-billable" means: a pharmacist can perform the service and the claim can be submitted under one of the recognized mechanisms (incident-to, RHC/FQHC, CPA, Medicaid waiver, commercial contract). It does not mean every pharmacy can bill every code — verify your specific MAC region, payer mix, and contract status.

Chronic Care Management (CCM)

CCM is the workhorse of pharmacy clinical billing. CMS pays for the time spent coordinating care for patients with two or more chronic conditions expected to last at least 12 months. Pharmacists are well-positioned for this work — patients with chronic conditions visit pharmacies more often than they visit any other care setting.

Code	Description	Time required	2026 nat'l avg
99490	CCM services, first 20 min/calendar month	20 min	$65
99439	CCM services, each additional 20 min (max 2 units)	20 min each	$48
99491	CCM by physician/QHP, first 30 min	30 min	$82
99437	CCM by physician/QHP, each additional 30 min	30 min	$57
99487	Complex CCM services, first 60 min	60 min	$132
99489	Complex CCM, each additional 30 min	30 min	$71
G0506	Comprehensive assessment of CCM patient (one-time)	—	$64

Documentation requirements: a problem list, expected outcomes and prognosis, measurable treatment goals, symptom management, planned interventions and identification of responsible providers, medication management, community/social services accessed, and a process for follow-up. Patient consent must be documented and the patient informed of their share of cost-sharing responsibility.

Medication Therapy Management (MTM)

MTM is comprehensive medication review with documented action items. Unlike CCM (which is monthly), MTM is encounter-based and focused on optimizing the medication regimen itself.

Code	Description	Time required	2026 nat'l avg
99605	MTM, initial face-to-face encounter, 15 min	15 min	$58
99606	MTM, subsequent face-to-face encounter, 15 min	15 min	$42
99607	MTM, each additional 15 min (with 99605 or 99606)	15 min each	$28

MTM under Medicare Part D follows separate Plan-defined criteria: most plans require patients to qualify on multiple chronic conditions, multiple Part D drugs, and minimum annual drug spend thresholds. Commercial MTM contracts vary widely. Many of the largest gains we see in the field come from commercial MTM, not Part D — patients on employer plans with PBM-administered MTM benefits have far less crowded competition for those encounters.

Transitional Care Management (TCM)

TCM is the post-discharge bundle. A clinician — sometimes including pharmacists in incident-to or collaborative-practice arrangements — provides care management for a patient transitioning from inpatient or observation back to the community within 30 days of discharge.

Code	Description	Decision-making	2026 nat'l avg
99495	TCM, moderate complexity, face-to-face within 14 days	Moderate MDM	$176
99496	TCM, high complexity, face-to-face within 7 days	High MDM	$236

The pharmacy's role in TCM is typically the medication reconciliation piece — comparing the post-discharge regimen against the pre-admission regimen, resolving discrepancies, and feeding the result back to the supervising physician. In practice, this is one of the cleanest places for an incident-to billing arrangement: the physician retains overall accountability, the pharmacist does the work, and the claim reflects both.

Behavioral Health Collaborative (BHI)

The 2026 PFS expanded the codes available for behavioral health integration in primary care, including specific HCPCS codes pharmacists can bill in RHC and FQHC settings.

Code	Description	Setting	2026 nat'l avg
G0511	RHC/FQHC behavioral health collaborative, per month	RHC/FQHC	$78
G0512	RHC/FQHC psychiatric collaborative care, per month	RHC/FQHC	$148
99492	Initial psych collaborative care, 70 min in first month	Outpt	$162
99493	Subsequent psych collab, 60 min/month	Outpt	$128
99494	Psych collab, each additional 30 min	Outpt	$58
G2214	Initial psych care, 30 min (alternative to 99492)	Outpt	$52

For pharmacy operators, the unlock here is the antidepressant and antipsychotic medication-management piece of behavioral health collaborative care. Pharmacists do this work already — the documentation discipline and the billing relationship with a primary-care or behavioral-health provider is what converts it into reimbursable time.

Point-of-care testing (POCT)

CLIA-waived testing at the pharmacy counter is one of the cleanest pharmacist-billable workflows. A standing order or collaborative practice agreement, a CLIA waiver, and a payer contract are the prerequisites.

Code	Description	2026 nat'l avg
87880	Strep A, infectious agent direct optical observation	$22
87804	Influenza A/B, direct optical observation	$24
87811	SARS-CoV-2, infectious agent antigen detection	$28
87635	SARS-CoV-2, amplified probe technique	$76
87426	RSV, infectious agent antigen detection	$26
82270	FOBT screening (colorectal)	$5
82962	Glucose, blood, by glucose-monitoring device	$3
83036	HbA1c, total	$13
80061	Lipid panel	$18
87651	Group A strep, amplified probe technique	$48
86617	Lyme disease, antibody confirmatory test	$20
87502	Influenza, multiplexed amplified probe (e.g., flu A/B + RSV)	$112

POCT bills cleanly when paired with the appropriate visit code (e.g., a brief problem-focused E/M under incident-to, a preventive-medicine code, or a public-health vaccine encounter). Pharmacies that bill the test alone often see denials because a payer expected an associated office-visit code.

Immunization administration

Immunization is the most-billed pharmacy clinical service. The administration code lives separately from the vaccine product code.

Code	Description	2026 nat'l avg
90471	Immunization admin, 1 vaccine (single or combination)	$28
90472	Each additional vaccine (with 90471)	$15
90473	Immunization admin by intranasal/oral, 1 vaccine	$26
90474	Each additional intranasal/oral vaccine	$14
G0008	Influenza virus vaccine admin (Medicare)	$28
G0009	Pneumococcal vaccine admin (Medicare)	$28
G0010	Hepatitis B vaccine admin (Medicare)	$28
M0201	COVID-19 vaccine admin in patient's home	$36

For Medicare Part B, use the G-codes for flu, pneumococcal, and Hep B. For all other commercial / Medicaid / pediatric immunizations, use 90471/90472/90473/90474. The vaccine product itself is billed separately under the appropriate CPT/CVX code.

Incident-to billing rules

"Incident-to" is the mechanism Medicare uses to allow non-physician practitioners — including pharmacists in many cases — to deliver services that are billed under the supervising physician's NPI. The core requirements:

• Direct supervision — the supervising physician must be present in the same office suite (or, increasingly under 2026 rules, immediately available by real-time audio/video) during the service.
• Established patient with established plan — the patient must have been seen by the supervising physician for an initial visit, with the plan of care set, before the pharmacist's incident-to service.
• Pharmacist services within scope — the service the pharmacist provides must be one a state license permits and one the supervising physician would otherwise provide.
• Employee or contracted — the pharmacist must be a W-2 employee or independent contractor of the supervising physician's billing entity.

RHC and FQHC pharmacies have their own pathways (the G0511/G0512 codes, RHC visit bundling) that don't require the same supervision posture. Provider-status legislation in several states gives pharmacists direct billing rights under Medicaid; check your state's status before assuming incident-to is your only path.

Time-tracking requirements

The CCM, MTM, BHI, and complex E/M codes are time-based. The single biggest source of audit risk for pharmacy clinical billing is sloppy time tracking. The rules:

• Track time per calendar month, per patient, per service. Don't aggregate across services or patients.
• Time stops when the activity stops. A 12-minute med-rec call is 12 minutes of CCM — not 20.
• Round only at the threshold. Submit 99490 once you cross 20 minutes. Submit 99439 once you cross 40. Don't round 19 minutes up.
• Document the activity, not just the duration. "12 min — discussed metformin GI side effects, advised taking with food, reviewed glucose log" is good. "12 min — patient call" is not.
• Capture time in real time. Reconstructing time after the fact is the most common audit finding.

Common denial reasons

A real coded encounter

Here's how MedMe would code a typical 22-minute CCM encounter with a 68-year-old patient on warfarin, metformin, and lisinopril, who came in for a refill consult that turned into a side-effect review and a glucose-meter check.

Done over 13,000 encounters per year (the kind of volume a 6-store pharmacy will see), small-dollar visits like this become real money. The work is what pharmacists already do. The codes are what convert the work into revenue.

Disclaimer

This guide is published April 2026 and reflects the 2026 Medicare Physician Fee Schedule, the 2026 CPT codeset, and the federal RHC/FQHC payment rules in effect at publication. Reimbursement rates are national averages — your actual rates will vary by MAC region, locality adjustment factor, and individual payer contracts. State Medicaid programs and commercial payers have their own coverage policies that may differ. Provider-status legislation, RHTP state plans, and incident-to rules are all evolving in 2026 — verify current rules with your MAC, your state pharmacy association, and your billing partner before submitting claims based on this guide.