Geriatrics & Care Management, coded right.

Use G0438 for a Medicare beneficiary's first AWV. Eligibility window: the patient must be past 12 months from their IPPE eligibility, OR has been on Medicare more than 12 months. Once-per-lifetime; year two and onward use G0439 (subsequent AWV). The AWV is a structured preventive service, not a problem-oriented visit. If you also performed problem-oriented E/M work, bill 99213 through 99215 with modifier 25 in addition to G0438 and document the two services separately.

G0439 is the annual Medicare AWV for any year after the patient's initial AWV (G0438). Eligibility window: at least 12 months from the most recent AWV. Medicare denies claims billed earlier than the 365-day mark. The AWV is a structured preventive service, not a problem-oriented encounter; if you also perform problem-oriented E/M work the same day, bill 99213 through 99215 with modifier 25 in addition to G0439 and document the two services separately. Common AWV-day add-ons: G0444 (depression screen), G0537 (ASCVD risk assessment), 99497 with modifier 33 (ACP with cost share waived), G0136 (SDOH risk assessment). The visit can be performed in person or via telehealth depending on payer; Medicare allows AWV via telehealth at POS 02 or POS 10 with modifier 95.

Use 99490 for monthly chronic care management of a patient with two or more chronic conditions expected to last 12 or more months or until the patient's death, and at significant risk of death, acute exacerbation, or functional decline. The 20-minute threshold is cumulative across the calendar month and covers clinical staff time (medical assistant, RN, LPN) directed by the billing provider. Activities counted: care plan review, care coordination with other providers, medication reconciliation, prescription refills, patient or family phone calls, lab and imaging review, social work coordination, behavioral health coordination. The work is non-face-to-face; do not count the time of any face-to-face encounter with the patient that month.

Use 99439 when documented clinical staff CCM time for the month exceeds the 20 minutes covered by 99490. The first unit applies at 40 cumulative minutes, the second at 60; two units is the monthly ceiling, so staff-time CCM tops out at 60 billable minutes (99490 + 2 x 99439). The patients who routinely reach add-on territory are the ones with active care plans in motion: a heart failure patient with weekly diuretic titration calls, a poorly controlled diabetic getting structured glucose-log review and coaching, a frail elder whose care involves repeated coordination with home health, pharmacy, and family. Time counts when clinical staff (MA, LPN, RN, care manager) perform care plan activities under the billing clinician's general supervision: phone calls, medication reconciliation, coordinating referrals and DME, arranging community services, reviewing remote data, and documenting against the care plan. If the billing clinician personally performs the work instead, use the 99491/99437 track; the staff and clinician code families cannot be mixed for the same patient in the same month.

Use 99495 when your practice assumes care of a patient discharged from an inpatient stay, observation, a skilled nursing facility, or partial hospitalization back to a community setting (home, assisted living, domiciliary). Three elements define the service. First, an interactive contact (phone, secure portal, or email exchange with a real response, made by you or clinical staff) within 2 business days of discharge. Second, a face-to-face visit within 14 calendar days; this visit is bundled into the TCM payment and is not billed separately. Third, medical decision making of at least moderate complexity during the 30-day service period, which starts on the discharge date. Typical 99495 patients: a COPD exacerbation discharge restarting home regimens, a heart failure patient with diuretic adjustments, an elderly patient discharged from a SNF after a fall. If MDM is high complexity and you see the patient within 7 calendar days, bill 99496 instead; high MDM with a visit on days 8 to 14 stays at 99495. The date of service is the date of the face-to-face visit, and the claim can go out as soon as that visit is done.

Use 99496 for the sickest transitions: the patient must need high-complexity medical decision making during the 30-day service period AND be seen face-to-face within 7 calendar days of discharge. Both conditions are required; high MDM with a day 8 to 14 visit drops to 99495, as does moderate MDM with a day 3 visit. Typical 99496 patients: an acute-on-chronic heart failure discharge on a new sacubitril/valsartan titration plan with renal function to monitor, a COPD patient discharged on steroids and new home oxygen, a complicated NSTEMI with dual antiplatelet decisions and multiple specialist handoffs, a frail elder with delirium resolving after sepsis. The same three structural elements as 99495 apply: interactive contact within 2 business days, the bundled face-to-face, medication reconciliation by the visit date, and 30 days of transition management beginning on the discharge date. The date of service is the face-to-face date and the claim may be submitted once that visit is complete.

99497 captures the time spent in a structured conversation about advance directives, healthcare proxy designation, code status, MOLST or POLST forms, hospice eligibility, and goals of care. The patient must be present at the start of the conversation unless the entire visit is with a designated surrogate (which is independently billable but requires explicit documentation). Common scenarios: ACP as a same-day add-on to an AWV (cost-share is waived with modifier 33); ACP at a primary-care continuity visit for a patient with advanced chronic disease; ACP at an oncology visit for a patient at end of treatment options; ACP during a geriatric assessment.

Use 99498 when a face-to-face advance care planning discussion runs past the first 30 minutes covered by 99497. The CMS time bands follow the midpoint rule: 99497 alone covers 16 to 45 minutes of ACP time, 99497 plus one unit of 99498 covers 46 to 75 minutes, and 99497 plus two units covers 76 to 105 minutes. The discussion covers the explanation and discussion of advance directives (health care proxy, living will, MOLST/POLST), with or without completing the forms, by the physician or QHP face-to-face with the patient, a family member, or a surrogate. Long ACP conversations that earn the add-on are common in newly diagnosed serious illness (metastatic cancer, advanced heart failure, ALS), at transitions like starting dialysis or considering hospice, and in family meetings where the patient lacks capacity and multiple decision makers need to align. ACP is time-based and separately billable on the same day as an E/M visit, an AWV, or monthly care management, provided the ACP minutes are carved out and documented separately.

99483 is the Medicare-recognized service for a comprehensive cognitive assessment with care plan, billed in patients with mild cognitive impairment, dementia (any stage and any cause), or strong clinical suspicion of cognitive impairment. Use it when you are establishing or revisiting a comprehensive care plan: an initial assessment for memory complaints in a 75-year-old, an annual re-evaluation for a known Alzheimer's patient, or a post-hospital cognitive assessment in a patient with new functional decline. The visit must cover 10 required elements and result in a written care plan shared with the patient and caregiver. Once per 180 days per beneficiary; you cannot stack two 99483 visits within the same six-month window. Qualifying diagnoses include G30.x (Alzheimer's), G31.84 (mild cognitive impairment), F01.x (vascular dementia), F03.x (unspecified dementia), G31.83 (dementia with Lewy bodies), and G31.09 (frontotemporal dementia). The 60-minute benchmark is typical but the code is not strictly time-based; the 10 structural elements drive billability.

G0136 captures the structured SDOH risk assessment using a validated tool. The most common settings are the AWV (G0438 or G0439), a primary-care continuity visit, or part of monthly CCM (99490 or 99491). Validated tools include PRAPARE, AHC HRSN (Accountable Health Communities Health-Related Social Needs Screening Tool), Health Leads, and the CMS-specified instruments. The screen covers domains like food insecurity, housing instability, transportation barriers, utility insecurity, interpersonal safety, financial strain, and social isolation. Positive findings should trigger a referral or care-plan action. The code is once per 6 months per beneficiary (not once per year), so capture can be twice annually if rescreening is clinically warranted. Use ICD-10 Z-codes from the Z55-Z65 series on the claim to reflect identified needs (Z55 education problems, Z56 employment, Z59 housing or economic, Z60 social environment, Z62 upbringing, Z63 primary support group, Z64 psychosocial, Z65 other psychosocial).