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ACPMBase2026 Compliant

CPT G0556

2026 Billing Guide

APCM Level 1

Reimbursement

$15.20

Threshold

N/A

2026 Status

Active

What is CPT Code G0556?

CPT G0556 is defined as: Advanced Primary Care Management (APCM) services, Level 1. This bundle covers comprehensive longitudinal care management for a patient with one chronic condition expected to last at least 12 months. It includes 24/7 access to care, systematic assessment, and coordination of services, serving as a replacement for standard CCM or PCM for eligible APCM participating practices.

This code is primarily used for ACPM services. It falls under the category of Care Management / APCM and is valid for the 2026 calendar year according to the CMS Physician Fee Schedule.

2026 RVU Components

Relative Value Units (Non-Facility)

Standard Formula Applied

Work RVU

Physician Effort

PE (Non-Fac)

Practice Expense

Malpractice

Risk Factor

Total RVU

Note: [(Work RVU * Work GPCI) + (PE RVU * PE GPCI) + (MP RVU * MP GPCI)] * Conversion Factor

2026 CMS Policy Intelligence

efficiency shield

Strategically exempt from the -2.5% efficiency adjustment. CMS created the APCM codes to incentivize longitudinal primary care, protecting their valuation from productivity-based cuts.

bundle integration

G0556 integrates elements of CCM and BHI into a simplified monthly payment, reducing the coding burden for primary care practitioners.

conversion factor

Utilizes the 2026 Non-QP rate of $33.40.

Administrative Framework

Place of Service

11 (Office)12 (Home)

NCCI Exclusions

Do not bill with:99490994919942499426G0511

Key Modifiers

25Significant, separately identifiable E/M service. Mandatory if APCM is initiated during an office visit.
G0568-G0570Behavioral Health Add-ons. Can be stacked with G0556 for patients in the APCM model requiring BHI/CoCM.

Operational Requirements

condition threshold

Patient must have exactly one chronic condition that is expected to last 12+ months or until death.

participation requirement

Practices must opt-in to the APCM model and meet the infrastructure requirements (e.g., electronic care plan, 24/7 access).

frequency

Billed once per calendar month.

patient consent

Annual verbal or written consent is required and must be documented in the medical record.

Compliance Checklist

Detailed time tracking (cumulative for the month).
Specific clinical decision-making documentation.
Electronic care plan availability and access log.

Audit Defense

No specific audit defense elements defined.

2026 Update

NEW 2026 CODE. Replaces CCM for single-condition patients in APCM-eligible practices. Stackable with BHI add-ons.

Common Clinical Scenarios

No clinical examples provided.

Target Specialties & Utilization

Primary CareInternal MedicineFamily Medicine

Typical Clinical Indications (ICD-10)

I10 (Essential hypertension)E11.9 (Type 2 diabetes mellitus without complications)J44.9 (COPD, unspecified)

Frequently Asked Questions

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