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99491 CPT Code Description and the 99437 Add-On
When the physician or practitioner does the CCM work personally, how to code it and what it pays.
Short answer: The 99491 CPT code description is chronic care management provided personally by a physician or other qualified health care professional: at least 30 minutes of the practitioner’s own time in a calendar month. 99437 adds each further 30 minutes; clinical staff time counts toward neither.
The 99491 CPT code description, as CMS restates it, is “CCM services provided personally by a physician or other qualified health care professional, at least 30 minutes of physician or other qualified health care professional time, per calendar month” (CMS CCM FAQ).
99491 and 99437 serve the same eligible CCM patients as the clinical-staff codes. They count only the billing practitioner’s personal work, which cannot be delegated or furnished incident to (CMS CCM FAQ).
TL;DR: the 99491 rules a biller needs
Whose time: the billing practitioner’s own; clinical staff minutes never count (MLN909188).
The units: 99491 for the first 30 minutes in the month, 99437 for each additional 30 (CY2022 final rule).
No incident-to: the work cannot be furnished incident to, delegated or subcontracted (CMS CCM FAQ).
The month: never with 99490, 99439, 99487 or 99489 for the same patient (MLN909188).
The claim: the date the 30 minutes are met may be the date of service (CMS CCM FAQ).
The 99491 CPT code description, clause by clause
- “Provided personally.” The billing practitioner does the work. 99491 “cannot be furnished incident to” a practitioner’s services, and the work for 99491 and 99437 “cannot be delegated or subcontracted to auxiliary personnel” (CMS CCM FAQ).
- “At least 30 minutes.” The practitioner’s own CCM time must reach 30 minutes. Short of that, the same minutes can count toward 99490 instead, since practitioner time counts there when it is not used to report 99491 (MLN909188).
- “Per calendar month.” The service period is one calendar month (CMS CCM FAQ).
- “Required elements.” The full descriptor carries the same three elements as 99490: two or more chronic conditions expected to last at least 12 months or until death; conditions that place the patient at significant risk of death, acute exacerbation or decompensation, or functional decline; and a comprehensive care plan established, implemented, revised or monitored (CY2022 final rule; MLN909188).
99437 is the add-on for “each additional 30 minutes by a physician or other qualified health care professional, per calendar month,” listed separately with 99491 (CY2022 final rule). So 30 minutes of the practitioner’s own time support 99491, and 60 support 99491 and one 99437.
When to use CPT code 99491 instead of 99490 or 99487
| Code | Whose time counts | Time unit | How it is furnished | Claim timing |
|---|---|---|---|---|
| 99491 | Billing practitioner only | At least 30 minutes | Personally; never incident to | At the threshold or month end |
| 99437 | Billing practitioner only | Each additional 30 minutes | Personally; add-on to 99491 | When its further 30 minutes are met, or month end |
| 99490 | Clinical staff, plus practitioner time not used for 99491 | At least 20 minutes | Clinical staff, general supervision | At the threshold or month end |
| 99439 | Same as 99490 | Each additional 20 minutes, up to two a month (CGS) | Clinical staff, general supervision | When its further 20 minutes are met, or month end |
| 99487 | Clinical staff or the billing practitioner | First 60 minutes, plus moderate or high complexity decision making by the practitioner | Clinical staff, general supervision | Month end |
| 99489 | Same as 99487 | Each additional 30 minutes | Clinical staff, general supervision | With 99487, at month end |
For a month with 35 practitioner minutes and 25 staff minutes, choose one route (MLN909188):
| Route | Minutes counted | Codes supported |
|---|---|---|
| Clinical-staff CCM | 35 practitioner + 25 staff = 60 | 99490 + two 99439 units |
| Practitioner-furnished CCM | 35 practitioner minutes only | 99491; staff minutes are not billed |
Compare locality-specific payment amounts in the CMS Physician Fee Schedule Look-Up Tool.
99487 adds a decision-making test: the billing practitioner’s medical decision making must be moderate or high complexity. If that requirement is met, the same 35 practitioner and 25 staff minutes total the 60 minutes needed for 99487. By comparison, 99491 counts personal time and sets no decision-making level (MLN909188).
The clinical-staff rules in full are in CPT 99490 and 99439 explained, and complex CCM, with its decision-making requirement and month-end reporting, has its own guide to CPT 99487 and 99489.
99491 billing requirements, month by month
Before the first minute: the initiating visit and consent
- Initiating visit: required for a new patient or one not seen by the billing practitioner within the previous year. A comprehensive E/M visit (levels 2 to 5), AWV or IPPE qualifies; bill it separately and discuss CCM.
- Consent: document written or verbal consent once, and again if the billing practitioner changes.
- Disclosures: CCM is available; cost sharing may apply; only one practitioner bills CCM per month; the patient may stop at any time. Sources: MLN909188; CMS CCM FAQ.
During the month: the practitioner’s own minutes
What counts is the practitioner’s own CCM work, such as telephone calls, review of records and test results, and coordination with other practitioners (CMS CCM FAQ). Time on one activity that serves several CCM patients is split among them (CMS CCM FAQ).
At the threshold: the date of service
- 99491: the date 30 practitioner minutes are met may be the date of service; month-end submission is optional.
- 99437: submit once its additional 30 minutes are met, or hold both codes until month end.
- After an initial claim: ask your MAC how to submit a later 99437 add-on.
- Care continues: furnish CCM throughout the month as medically necessary, even after reaching the threshold. Source: CMS CCM FAQ.
Can 99491 be billed with other codes in the same month?
For the same patient in the same calendar month:
- 99490, 99439, 99487 or 99489: not allowed (MLN909188).
- Principal care management: not by the same practitioner; a different practitioner may bill it for a different condition, with two care plans (CMS CCM FAQ).
- Transitional care management (99495, 99496): 99491 can be reported during the 30-day TCM period; TCM minutes cannot also count toward CCM (MLN909188; CMS CCM FAQ).
The other same-month rules, for APCM, remote monitoring, behavioral health integration, PIN and CHI, home health and hospice supervision, and monthly ESRD services, apply to 99491 as to every CCM code; the CCM billing guide sets them out in one table.
Common 99491 billing mistakes
Where 99491 claims go wrong:
Logging staff minutes under the practitioner’s name. Clinical staff minutes cannot support 99491 or 99437, regardless of whose login records them. Track staff time separately; it may count toward clinical-staff CCM codes in a month that uses neither 99491 nor 99437 (MLN909188; CMS CCM FAQ).
Skipping the scope of service. Certified EHR recording, an electronic care plan, access 24 hours a day, 7 days a week for urgent needs and a designated care team member still apply when the practitioner does the minutes, unless an element is not medically indicated (MLN909188; CMS CCM FAQ).
Adding a second practitioner’s minutes to one 99491. An NP’s or PA’s minutes cannot be counted under a physician’s 99491: the code “cannot be furnished incident to a practitioner’s professional services,” whether by other practitioners or clinical staff (CMS CCM FAQ). Each practitioner’s 99491 counts only that practitioner’s own time.
Running CCM on staff time instead of 99491
Months your clinical staff carry can be billed under 99490 and 99439, or, for one high-risk condition, as principal care management under 99426 and 99427. If staff hours are the constraint, see how outside chronic care management companies divide the 99490 and 99439 work with a practice under the CY2026 rules.
Companian does not support 99491 or 99437. Your team refers; we handle enrollment, outreach and documentation. You bill monthly under your license.
Key takeaways
- Log the billing practitioner’s CCM minutes apart from staff minutes from the first day of the month.
- Each month, per patient, report the practitioner’s minutes under 99491 and 99437 or pool them under 99490 and 99439, never both.
- 99491 may be billed once 30 practitioner minutes are met; when a 99437 is likely, decide before the first claim whether to bill at each threshold or hold both to month end.
- Keep the CCM scope of service in place: certified EHR, an electronic care plan, access 24 hours a day, 7 days a week, and a designated care team member.
- Confirm the initiating visit and documented consent before the first 99491 month.
Questions about CPT 99491 and 99437
Can a nurse practitioner bill 99491?
Yes. Nurse practitioners, physician assistants, clinical nurse specialists and certified nurse-midwives may bill CCM, as physicians do (MLN909188). The NP bills 99491 only for time the NP personally spends.
What is the difference between 99490 and 99491?
99490 counts at least 20 minutes of clinical staff time under general supervision, plus practitioner time not used for 99491 (MLN909188). 99491 counts only at least 30 minutes the billing practitioner furnishes personally, and it cannot be billed incident to (CMS CCM FAQ). The two never share a month for the same patient.
Can two practitioners bill 99491 for the same patient in one month?
No. Only one practitioner can furnish and bill CCM for a patient in a calendar month, and the patient is told so before consent (MLN909188). A second practitioner’s 99491 for that month is a duplicate claim.
Can 99491 be billed on the same day as an office visit?
Yes. CCM time spent on the same day as an E/M visit counts toward 99491 as long as it is not also counted toward the visit (CMS CCM FAQ). Document the two separately.
Can 99491 be billed if the patient dies during the month?
Yes, if the required time for the code was met that calendar month and every other billing requirement was met (CMS CCM FAQ). A month that ends short of 30 practitioner minutes is not billed under 99491.
Can 99491 be billed for a patient in a nursing facility or assisted living?
Yes. CCM is priced in both facility and non-facility settings, and the place of service on the claim is where the billing practitioner would ordinarily see the patient face to face (CMS CCM FAQ).
CPT 99491 and 99437 are Medicare Part B CCM codes that physician practices bill for the billing practitioner’s personal time. Clinical staff minutes belong to the other CCM code families, and cannot count toward these two codes. Companian does not offer 99491 or 99437.
Sources
- CMS, Chronic Care Management Services (MLN909188), June 2025
- CMS, CCM Practitioner Billing FAQs, August 2022
- CY 2022 Physician Fee Schedule final rule (86 FR 64996)
- CGS Administrators, Chronic Care Management (CCM), February 2022
Read more: CCM documentation requirements, month by month · How referral works for physician practices
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