What is Principal Illness Navigation (PIN)?
Principal Illness Navigation (PIN) is a Medicare service that helps a patient with one serious, high-risk illness expected to last at least three months navigate their care under a disease-specific plan.
Which patients qualify for PIN?
- One serious, high-risk illness is expected to last at least three months.
- The illness places the patient at significant risk of hospitalization, nursing-home placement, acute decline, or death.
- The patient needs substantial disease-specific navigation around the treatment plan, services, and barriers to care.
What are the PIN codes?
The PIN codes are G0023, G0024, G0140 and G0146.
| Code | Covers | 2026 national office benchmark |
|---|
| G0023 | Illness navigation: First 60 minutes / month | $87.18 / patient month |
|---|
| G0024 | Illness navigation: Each additional 30 minutes | $54.44 / additional 30 min |
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| G0140 | Peer-support pathway: First 60 minutes / month | $89.18 / patient month |
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| G0146 | Peer-support pathway: Each additional 30 minutes | $53.44 / additional 30 min |
|---|
PIN supports a qualifying serious, high-risk illness. Initiating-visit, consent, personnel and supervision requirements apply. General navigation and behavioral-health peer support are distinct pathways.
2026 Medicare allowed amounts, national office/nonfacility benchmark, non-QP conversion factor. Includes applicable patient cost sharing; before practice costs and MySeema fees. Actual collections vary with location, setting, clinician, coverage, and claim adjustments. See the rate source and estimate your practice.
PIN billing rules
- First 60 completed minutes per calendar month, then a separate 30-minute add-on.
- Require an initiating visit, consent initially and annually, qualified personnel and documented condition-specific work.
- One practitioner cannot bill multiple PIN services for different conditions for that patient in one month.
- PIN and peer-support PIN cannot coexist for the same condition. A patient may receive PIN from different practitioners for different conditions; this estimate models one practitioner and one condition.
- Distinct necessary CHI or other care-management work may coexist without duplicated minutes/effort.
Patient cost sharing and protections depend on coverage and the service. Explain them before consent. RHC/FQHC payment rules and Medicare Advantage contracts differ from the national benchmark.
What a practice needs before starting PIN
- Eligible initiating visit and disease-specific treatment plan
- Documented serious, high-risk illness and navigation need
- Qualified or trained navigation personnel and partner supervision
- Patient and family communication, consent, escalation, and documentation workflow
- Review of overlapping navigation and care-management services
Who does what in a supported PIN program
Your practice or organization
- Perform the initiating visit, identify the qualifying serious illness, and establish the treatment plan that includes PIN.
- Provide general supervision and ensure navigators meet applicable state or CMS training or certification requirements.
- Make clinical decisions and own consent, documentation, duplicate-service controls, and billing.
A support partner such as MySeema
- Help the patient and family understand the practical sequence of the disease-specific care plan.
- Coordinate appointments, referrals, records, services, transportation, and other assigned barriers around the principal illness.
- Document progress and route symptoms, treatment questions, or plan changes to the responsible clinical team.
Your clinicians keep clinical decisions and oversight, and your organization bills eligible services.
What changes for PIN in 2027?
The benchmarks on this page are 2026 amounts. Medicare’s 2027 conversion factor is lower ($32.63 for most clinicians, down 2.31%), so 2027 payment amounts will differ. Read what the 2027 fee schedule changes.
Common questions about PIN
Is PIN limited to cancer?
No. Cancer is one possible example. PIN may fit other serious, high-risk illnesses when the condition and service meet current requirements and the practitioner establishes a disease-specific treatment plan.
How is PIN different from general care navigation?
General navigation may support many needs and funding arrangements. Medicare PIN is a defined practitioner-led service tied to one qualifying serious illness, an initiating visit, trained personnel, supervision, and documentation.
How is PIN different from CHI?
PIN centers on navigating a serious-illness care plan. CHI centers on specific social or practical barriers that materially interfere with diagnosis or treatment. The need and service requirements determine the fit.
Related guides
This guide summarizes Medicare requirements for planning. It is not a billing manual or a promise of reimbursement. Confirm requirements with your billing and compliance teams.