PCM fills an important gap in the care management billing framework for specialty practices that manage patients with single complex conditions. Oncologists managing active cancer patients, cardiologists managing advanced heart failure patients, and pulmonologists managing severe COPD patients all have patients who require intensive care coordination but who may not have the two-condition requirement for CCM. PCM provides a billing mechanism for the care management services these specialists already provide.

For primary care practices, PCM is a complement to CCM that allows the practice to bill for care management services for patients who qualify for PCM but not CCM. A patient with a single high-risk condition — for example, a patient with newly diagnosed advanced heart failure who does not yet have a second qualifying chronic condition — can be enrolled in PCM until they develop a second qualifying condition, at which point they can transition to CCM.

The 30-minute minimum time requirement for PCM is higher than CCM's 20-minute minimum, reflecting the expectation that PCM patients have more complex care coordination needs. Practices that implement PCM should ensure that their care coordination workflows are designed to consistently meet the 30-minute threshold and that the time is documented accurately.

CMS established PCM in the 2020 Medicare Physician Fee Schedule Final Rule (84 FR 62568), effective January 1, 2020. The creation of PCM reflected feedback from specialty providers who noted that CCM's two-condition requirement excluded many of their most complex patients — patients with a single high-risk condition who required intensive care coordination.

CMS designed PCM to complement CCM rather than replace it, creating a care management billing framework that covers patients across the spectrum of chronic disease complexity. The 2020 MPFS Final Rule also clarified the relationship between PCM and CCM, specifying that the two codes cannot be billed for the same patient in the same month.

CMS has updated PCM reimbursement rates and coverage criteria through subsequent annual MPFS rulemaking. The PCM billing framework continues to evolve as CMS gathers data on utilization and outcomes.

PCM is covered under Medicare Part B as a care management service. CMS established the PCM billing framework in the 2020 Medicare Physician Fee Schedule Final Rule. The applicable CPT codes (99424-99427) were created by the AMA's CPT Editorial Panel and adopted by CMS for Medicare billing.

CMS requires that PCM services be provided for a patient with a single complex chronic condition expected to last at least three months. The condition must require development of a disease-specific care plan, frequent adjustments to the treatment plan, and ongoing communication with the patient and other providers. The billing provider must have an established patient relationship with the patient, and the patient must provide consent to participate in PCM.

The OIG has identified care management services, including PCM, as an area of potential billing abuse. Providers who bill PCM should ensure that their programs meet all CMS requirements, including the condition complexity requirement, the care plan requirement, and the time documentation requirement.

State Medicaid coverage for PCM is limited and varies by state. Most state Medicaid programs have not yet established PCM-specific billing codes or coverage policies. Providers who want to bill Medicaid for PCM should contact their state Medicaid agency to determine whether PCM is covered and what billing requirements apply.

Commercial payer coverage for PCM is inconsistent. Some commercial payers have adopted Medicare's PCM billing framework, while others have not yet established PCM coverage policies. Providers should verify PCM coverage with each commercial payer before enrolling patients and submitting claims.