Part of Advanced Primary Care Management
HCPCS G0556: Advanced Primary Care Management, Level 1
Flat monthly APCM service for a patient with zero or one chronic condition expected to last at least 12 months or until death.
Time threshold & code combinations
No minimum time requirement: billed once per calendar month per patient based on tier, not cumulative minutes.
- Mutually exclusive with G0557 and G0558 for the same month: choose the tier that matches the patient's condition count and QMB status
- Do not bill alongside CCM, PCM, or TCM codes for the same patient during the same period
Who can bill
- Physicians
- Nurse practitioners, physician assistants, and other non-physician practitioners serving as the patient's continuing primary care focal point
Eligibility & billing requirements
- Patient has zero or one chronic condition expected to last at least 12 months or until death, or that places them at risk of exacerbation, decompensation, or functional decline (this is the baseline tier, not limited to exactly one condition)
- Practitioner is responsible for all of the patient's primary care services
- Documented patient consent to APCM
- All APCM service elements must be in place: 24/7 access, care plan, care coordination, and the other items in the program overview
- Only one APCM tier billed per patient per calendar month
- Not billed concurrently with CCM, PCM, or TCM for the same patient and period
When to use it
Single stable chronic condition
A patient with well-controlled hypertension as their only qualifying chronic condition is enrolled in the practice's APCM program with a documented care plan and 24/7 access line.
Billing: G0556, once for the month
New patient establishing primary care
A new Medicare patient completes an initiating visit, a chronic condition expected to persist over a year is identified, and consent is documented at the visit.
Billing: G0556 the following month, once the initiating visit and consent are on file
Documentation checklist
- Consent to APCM services
- Initiating visit note, if required
- Care plan reflecting the single qualifying chronic condition
- Evidence of 24/7 access capability and care coordination activity during the month
Common billing mistakes
- Billing G0556 when the patient actually has two or more qualifying chronic conditions
- No documented consent
- Billing without an accessible, patient-specific care plan