Collaborative Care Model (CoCM) Knowledgebase
Answering commonly asked questions about the Collaborative Care Model (CoCM)
Clinical Questions Regarding CoCM
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CoCM requires the routine use of validated rating scales to monitor patient progress. These tools allow practices to measure clinical effectiveness through two key metrics: Response Rates (the percentage of patients achieving at least a 50% reduction in symptoms) and Remission Rates (the percentage of patients whose symptoms have resolved). Additionally, tracking assessment completion helps providers monitor treatment adherence and patient engagement.
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Commonly used assessments in CoCM include the PHQ-9 (measuring severity of depression), GAD-7 (assessing severity of generalized anxiety), AUDIT-C (measures alcohol use), DAST-10 (screens drug usage) and WHODAS 2.0 (measuring functional impairment). While these measures are common, which measures to use depends on the individual patient.
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The number of PCPs that each CoCM BHCM can support depends on the population (severity, speciality, etc.) of the program. With more severe populations in specialty care settings like Oncology, BHCMs may only be able to support 2-3 PCPs. With more mild to moderately severe populations in more traditional primary care settings, BHCMs may be able to support 4-5 PCPs.
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According to CMS, the behavioral health care manager (BHCM) is a core care team member with specialized training in behavioral health, typically in fields such as social work, nursing, or psychology. While CMS does not mandate a specific degree, the BHCM must maintain a continuous, integrated relationship with both the patient and the primary care team. They must be available for in-person services when necessary and offer the flexibility to engage patients outside of standard clinic hours to ensure continuity of care.
Some states require BHCMs to be licensed.
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Treat-to-Target is a clinical strategy where treatment is adjusted systematically until a specific goal (target) is met. In CoCM, this target is typically a 50% reduction in symptoms (Response) or a score below a certain threshold (Remission) on validated scales like the PHQ-9 or GAD-7. If a patient is not reaching these targets within 8–12 weeks, the psychiatric consultant recommends a specific change in the treatment plan, such as a medication adjustment or a different therapeutic approach.
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The Behavioral Health Care Manager (BHCM) provides brief, evidence-based psychosocial interventions. Unlike traditional long-term therapy, these are focused, short-term strategies designed to be delivered in a primary care setting. Common interventions include:
Behavioral Activation (BA): Helping patients re-engage in rewarding activities.
Motivational Interviewing (MI): Resolving ambivalence toward change.
Problem-Solving Treatment (PST): Teaching patients structured ways to manage life stressors.
Relapse Prevention: Developing a plan to maintain wellness after symptoms improve.
Billing for the Collaborative Care Model
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CoCM services are billed directly by the treating provider/Primary Care Provider (PCP), according to the American Psychiatric Association (APA.
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According to CMS, CoCM and Chronic Care Management (CCM) codes may be billed for the same patient in the same month, provided the patient has given advance consent for both programs. To remain compliant, all individual requirements for both services must be met, and time and effort must not be double-counted across the two sets of codes.
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99492 (initial month) requires 70 minutes of care management; 99493 (subsequent months) requires 60 minutes. Both require patient consent, a behavioral health diagnosis, and psychiatric consultant review. Note: Under the "half plus one" rule, you can bill 99492 at 36 minutes and 99493 at 31 minutes.
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Medicare generally allows up to 4 units of 99494 per month. Medicaid and private payer limits vary based on "Medically Unlikely Edits" (MUEs).
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Once per patient per "episode of care." A new episode can typically be billed if there has been a break in service of 6 months or more.
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The consulting psych commonly provides medication or psychiatric recommendations and consistently reviews patient feedback reports. Their time spent consulting on the patient's treatment service counts toward the total accrued time for that patient. It is important to note, however, that psychiatric consultants cannot bill separately for their dedicated time spent consulting in the collaborative care model (CoCM).
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CMS guidelines specify that if a behavioral health care manager is credentialed to independently bill Medicare, they may report separate clinical services for a beneficiary in the same month they receive BHI or CoCM. This allows qualified clinicians to provide and bill for distinct services, such as individual psychotherapy, alongside their care management duties. Time and effort must not be double-counted across the two sets of codes
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CoCM is highly effective for patients with mild-to-moderate behavioral health conditions, such as Depression, Generalized Anxiety Disorder, PTSD, and even some substance use disorders. It is especially helpful for patients who "fall through the cracks" in traditional care models.
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There is no "required" frequency for patient encounters in CoCM, as the model is based on patient needs rather than a rigid schedule. However, clinical best practices suggest more frequent contact (weekly or bi-weekly) during the "Active" phase of treatment when symptoms are high. As the patient improves and moves into the "Maintenance" or "Relapse Prevention" phase, contact may shift to monthly or as-needed.
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Yes. While CoCM is most commonly used for depression and anxiety, it is highly effective for any behavioral health condition that can be managed in a primary care setting. The psychiatric consultant provides the specialized expertise needed to manage complex cases, while the care manager ensures high-touch follow-up. If a patient is too unstable for primary care, the CoCM team facilitates a warm handoff to a higher level of specialty care.
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Typically, no. The Psychiatric Consultant provides expert recommendations to the Care Manager and PCP during weekly caseload reviews. In rare, complex cases where a direct psychiatric evaluation is needed, that visit is usually billed separately outside of the CoCM monthly codes.
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The Primary Care Provider (PCP) maintains clinical oversight and writes the prescriptions based on the Psychiatric Consultant’s recommendations. This allows the patient to receive specialized mental health medication management from their trusted primary doctor.
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These reviews happen weekly. The Care Manager and Psychiatric Consultant meet (virtually or in person) to review the registry, focusing specifically on new patients and those who are not meeting their "treat-to-target" goals.
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Documented Consent: Ensuring patient agreement is recorded in the medical record prior to service.
Engagement: Physician-directed outreach and treatment engagement for identified patients.
Initial Assessment: Baseline evaluation using validated rating scales conducted by the primary care team.
Joint Care Planning: Collaborative development of a treatment plan, with updates for patients showing inadequate progress.
Psychiatric Review: Expert oversight of the care plan with specific recommendations for clinical modifications.
Systematic Follow-Up: Proactive monitoring by the Care Manager using a clinical registry and validated tools.
Caseload Review: Mandatory weekly consultations between the Care Manager and the Psychiatric Consultant.
Evidence-Based Treatment: Delivery of brief interventions, including Motivational Interviewing and Behavioral Activation.
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Patient consent is a mandatory requirement for being enrolled in and billing for CoCM services. While this consent may be obtained verbally (written consent is not strictly required) it must be clearly documented in the patient's medical record before services are billed.
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Under CoCM guidelines, the behavioral health care manager must have the capacity to provide in-person services if needed. however, there is no mandate that services actually be delivered face-to-face; care can be provided via telephone or secure video, depending on the patient's needs and the clinician's judgment.
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While CMS does not specify a set assessment cadence required to be compliant under the CoCM billing regulations, patients must be proactively and systematically assessed using validated rating scales and a registry.
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The psychiatric consultant and care manager (BHCM) do not need to be direct employees of the billing provider’s organization, as they can be contracted through external partners. The care manager, however, must be available for in-person visits if necessary, whereas the Psychiatric Consultant often works remotely. Regardless of their employment status, all team members operate under the direction of the Billing Practitioner, who remains the sole entity submitting claims to CMS for CoCM services.
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Enrolling a patient in the Collaborative Care Model (CoCM) requires two primary steps: obtaining and documenting advanced patient consent, and a provisional diagnosis. This referral into CoCM is based on the judgment of the treating physician or qualified health professional, who determines that a presenting psychiatric or behavioral health condition warrants further assessment and treatment through CoCM.
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CoCM billing is based on the cumulative time spent on clinical activities throughout a calendar month, including both patient-facing and non-patient-facing tasks. These billable activities include reviewing assessment results, delivering brief evidence-based psychosocial interventions, collaborating with the psychiatric consultant and PCP on care plans, conducting weekly systematic caseload reviews, and performing necessary care plan revisions, and more.