CPT code 99374 – Home health care plan oversight

Key takeaways

CPT Code 99374 covers 15 to 29 minutes a month of physician care plan oversight for a home health agency patient who is not present.

Only one care plan oversight code may be billed per patient per calendar month, and each activity’s time should be logged as it happens.

Medicare does not accept 99374. For 30 or more minutes of home health oversight, bill HCPCS G0181, since G0180 is the separate certification code. Submitting 99374 to Medicare is a common denial reason.

Pabau’s claims management software submits CMS-1500 claims through Claim.MD, runs real-time eligibility checks, and tracks claim status and ERAs.

CPT Code 99374: Official description and code overview

CPT Code 99374 is the code for physician care plan oversight of a patient under the care of a home health agency. It also covers 15 to 29 minutes of supervision in a calendar month, all of it performed without the patient present. The American Medical Association’s CPT code set places it in the Care Plan Oversight Services range with 99375, 99377, 99378, 99379, and 99380.

The service is strictly non-face-to-face. The patient does not need to be present. In fact, face-to-face encounters with the patient are explicitly excluded from the time count. Time accumulates across the calendar month rather than per visit. Only one oversight code may be billed per patient per month, however many activities the physician performs.

Medicare does not pay 99374, so the code goes to commercial payers and to the state Medicaid programs that accept CPT care plan oversight codes.

What does CPT 99374 cover? Included and excluded services

CPT Code 99374 covers physician work that manages the ongoing care of a home health patient without a direct encounter. Therefore, only qualifying activities count toward the 15-minute monthly floor.

Activities that count toward 99374 time:

• Reviewing and revising the patient’s care plan
• Reviewing test results (lab, imaging, diagnostic reports)
• Communicating with the home health agency, nurses, therapists, or other care team members
• Adjusting medication orders in response to care plan changes
• Reviewing and signing documents (other than routine clerical signing)

Activities excluded from the 99374 time count:

• Any face-to-face encounter with the patient (billed separately as an E&M code)
• Services that are separately billable under another code
• Routine clerical or administrative work not requiring physician judgment

Time requirements: 99374 vs 99375

The 15-to-29-minute threshold determines whether CPT Code 99374 or its companion 99375 applies. Only one may be billed per patient per calendar month, so the total accumulated time across all oversight activities that month decides the code.

Therefore, time under 15 minutes does not meet the threshold for either code and cannot be billed. If accumulated monthly time falls between 15 and 29 minutes, then 99374 applies. However, at 30 minutes or above, 99375 applies. Furthermore, physicians cannot split the time across two codes in the same month.

Who can bill CPT Code 99374? Eligible providers and settings

CPT Code 99374 may be billed by the physician responsible for the patient’s overall care under the home health plan. Moreover, the supervising provider must be the one directing the patient’s care. In contrast, a covering provider or a consultant with no ongoing oversight role does not qualify.

Likewise, nurse practitioners (NPs) and physician assistants (PAs) may be eligible to bill 99374 under some payer policies. Eligibility also varies by payer and by state scope-of-practice rules. For this reason, verify with the applicable Medicare Administrative Contractor (MAC) or commercial payer before submitting claims from non-physician providers. Finally, the patient must be under the care of a home health agency with a current plan of care (Medicare-certified where the payer requires it).

Medicare vs commercial payer rules for CPT Code 99374

Medicare does not cover CPT Code 99374 for home health care plan oversight, and this is the most important payer rule for the code. Instead, Medicare uses G0181, one of the HCPCS Level II codes, for 30 or more minutes of oversight a month. However, G0180 is a separate certification code, not an oversight substitute. As a result, Medicare has no payable code for 15 to 29 minutes, and a 99374 claim sent to Medicare is denied.

MAC jurisdiction also matters. Novitas Solutions (Jurisdictions H and L) and Palmetto GBA (Jurisdiction J) may have local coverage articles that supplement the national CMS policy. Therefore, check your MAC’s provider education portal for any additional documentation requirements beyond the national standard.

CPT 99374 vs G0180 and G0181 for Medicare patients

G0181 is the only Medicare analog for home health care plan oversight. It pays for ongoing physician supervision of a patient already receiving Medicare-covered home health services, at 30 or more minutes a month.

G0180 is a certification service, not an oversight alternative. Instead, it pays the physician for certifying the initial home health plan of care, which establishes the patient’s eligibility. Thus, G0180 is not an analog of CPT Code 99374 at all.

A common billing error on this code family is submitting CPT Code 99374 on a Medicare claim. For this reason, verify the patient’s payer before the month of service, not after the claim is denied. The payer decides the code family, and the agency type and monthly minutes decide the code within it, as the grid below shows.

Hospice care plan oversight: CPT 99374 vs 99377 and 99378

When a patient is receiving hospice care rather than home health services, CPT Code 99374 does not apply. The hospice oversight code pair is 99377 (15-29 minutes per month) and 99378 (30 or more minutes per month). Therefore, the distinction is the care agency type, not the patient’s clinical condition or the nature of the oversight activities.

A patient in hospice care is not simultaneously enrolled in the home health benefit. Billing 99374 for a hospice patient is therefore a code selection error, and auditors look for this mismatch specifically. Similarly, Medicare does not accept 99377 or 99378. For a Medicare hospice patient, oversight of 30 or more minutes a month is billed under G0182.

Documentation requirements for CPT Code 99374

Documentation must be contemporaneous, recorded at or near the time of each oversight activity rather than rebuilt at month end. Moreover, the record must support both the time threshold and the nature of the supervision. Practices with strong medical billing compliance treat the 99374 time log as part of the clinical record.

• Time log: Start and stop times, or total cumulative time for each oversight activity during the month
• Date of each activity: Each oversight event must be individually dated
• Nature of the oversight: Brief description of the activity performed (e.g., “reviewed lab results with visiting nurse,” “revised pain management order”)
• Patient identification: Name and identifier linking the note to the patient’s record
• Provider signature: Attending physician’s signature on each dated entry
• Care plan on file: The home health agency’s plan of care must exist and be current

However, individual payer policies may add requirements beyond this list. Therefore, check the commercial plan’s or state Medicaid program’s policy before finalizing documentation templates for CPT Code 99374.

How to bill CPT 99374: Step-by-step billing instructions

Billing CPT Code 99374 is a monthly workflow rather than a single-encounter process. First, the time log carries the claim during the month. Practice platforms such as Pabau then handle submission through their medical billing software, from the CMS-1500 claim to status tracking.

1. Accumulate and log time throughout the month. Record each oversight activity with its date, description, and time immediately after completion.
2. Total the monthly time at month end. Calculate cumulative minutes across all logged oversight activities for that calendar month and patient.
3. Select 99374 or 99375 based on total time. 15-29 minutes: Bill 99374. 30 minutes or more: Bill 99375. Under 15 minutes: No oversight code is billable.
4. Confirm the payer. Medicare does not accept 99374, so bill G0181 (30+ minutes) for Medicare home health patients. Verify the patient’s coverage before submission.
5. Add applicable modifiers. If an E&M service was also rendered on a day with oversight activity, Modifier 25 goes on the E&M code, not on 99374. It signals a significant, separately identifiable service. On the other hand, applying Modifier 25 to 99374 itself is an error.
6. Submit with a supporting diagnosis code. Use the ICD-10-CM code that reflects the patient’s condition requiring home health oversight.

A clean claim submission for 99374 means the time log, the care plan, and the payer code all align before the claim leaves the practice. In fact, fixing a mismatch at that point costs far less than appealing a denial.

CPT Code 99374 reimbursement rates: Medicare and payer benchmarks

Medicare does not reimburse CPT Code 99374. For Medicare home health patients, oversight is paid only under G0181, at 30 or more minutes. In contrast, commercial payers that accept 99374 typically negotiate its rate as a percentage of the Medicare Physician Fee Schedule (MPFS) non-facility rate for the equivalent service.

For this reason, use the CMS Physician Fee Schedule lookup tool to check current MPFS rates for the CPT 99374 code family. Rates update each January with the MPFS final rule and also vary by geographic adjustment (GPCI).

Common denial reasons for CPT 99374 and how to prevent them

Denials on CPT Code 99374 cluster around a small number of predictable errors. Strong denial management workflows treat each one as a pre-submission check rather than a post-denial recovery task.

How Pabau supports care plan oversight claims

Oversight minutes often sit in chart notes or a spreadsheet until month end, when someone keys the claim by hand. Moreover, each handoff is another chance to send 99374 to the wrong payer or misread the payer’s coverage.

Additionally, Pabau integrates with the Claim.MD clearinghouse for electronic claim submission to thousands of US payers on the CMS-1500 form. Real-time eligibility checks through Claim.MD let practices verify whether a patient’s commercial payer covers 99374 before the oversight period ends.

Generating a superbill from Pabau pre-populates the oversight code and diagnosis code into a submission-ready format, which cuts keying errors. After submission, claim status and ERA tracking show which claims were paid and which need follow-up.

Get oversight claims out clean every month

Pabau’s claims management software submits CMS-1500 claims through Claim.MD, checks eligibility in real time, and tracks claim status and ERAs. You see which 99374 claims were paid and which need follow-up.

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Conclusion

Treat CPT Code 99374 as a payer decision first and a time decision second. Confirm the payer before the month starts, then log every oversight activity as it happens. Those two habits therefore prevent the denials this code is known for.

The trade-off to accept is on Medicare patients. A month of 15 to 29 minutes earns nothing from Medicare. Therefore, that oversight work becomes billable only at the 30 minutes G0181 needs.

Book a demo to see how Pabau handles claim submission, eligibility checks, and ERA tracking for your care plan oversight patients.

Continue your research

Need to understand how clearinghouse submissions work for oversight codes? Medical claims clearinghouse guide explains how clearinghouses validate and route CPT claims to payers.

Worried about 837P format requirements for 99374 claims? 837 file billing guide covers the electronic transaction format used for professional claims submission.

Want to prevent denials before they happen? Denial codes in medical billing maps the CARC codes that appear on remittances when 99374 claims are rejected.

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