2026 OIG Audit Survival Guide
23 must-have items that saved our clients millions.
Download free →CMS adopted new RPM and RTM CPT codes for 2026 that pay for shorter monitoring windows (2–15 days) and shorter management time (first 10 minutes), but the underlying audit logic does not get easier.
The biggest practical risk is misreading these new codes as a “looser RPM era.” OIG has already signaled RPM oversight concerns, and CMS is simultaneously shifting payment methodology toward more auditable cost inputs.
How to use this page: This is a regulatory-anchored operational guide for Medicare billing and compliance planning. It is not legal advice. Medicare Advantage and commercial payers may impose additional rules.
2026 adds new RPM/RTM codes for 2–15 days of monitoring and for management under 20 minutes, but you still must meet medical necessity, practitioner attribution constraints, device requirements, and documentation that matches the unit of service; shorter thresholds don’t “wash out” weak controls.
A final-rule summary of the CY 2026 PFS explains that the CPT Editorial Panel created two new RPM codes to describe:
and CMS adopted them for 2026 (codes 99445 and 99470).
For RTM, the same final-rule summary describes four new RTM codes covering:
and identifies the relevant code structure including 98984, 98985, 98986 (2–15 day supply) and 98979 (short management time).
The final-rule summary spells out the practical bucket split you must encode:
If your systems can’t enforce “correct code for the measured bucket,” you will generate technically unsupported claims.
CMS finalized a broader policy of using Medicare Hospital OPPS data to inform cost assumptions for some technical services, including some remote monitoring services.
The final-rule summary describes CMS using OPPS geometric mean cost data to inform practice expense valuation for 99445 and 99454, including treating them similarly because the device is supplied for the full 30-day period regardless of number of days transmitted.
Even after 2026, these remain foundational—and they are exactly where denial/audit risk concentrates:
OIG found that a significant share of RPM enrollees did not receive all three RPM components and that Medicare lacks key oversight information (including who ordered the monitoring).
Operational reality: patients transmit sporadically, and billing teams are incentivized to “salvage” the month. What breaks: code selection becomes a revenue patch, not an evidence-based reflection of what happened. The 2026 structure makes bucket selection a first-class compliance rule (2–15 vs 16–30).
CMS materials consistently frame the requirement as days of data in a 30-day period (not number of readings).
Shorter time codes lower the cliff, but they don’t eliminate the requirement that the work be clinically meaningful, medically necessary, and supported by the record. The 2026 changes explicitly create a “<20 minutes” bucket; they do not create a “time without care management” bucket.
If a vendor is “running RPM” and the practice is also billing, you can easily end up with duplicate RPM billing in the same 30-day window—especially when multiple devices are involved. This is directly called out in CMS guidance (one practitioner per 30 days; cannot bill RPM and RTM together).
RPM/RTM are inherently non-face-to-face, but CMS has clarified they are not Medicare telehealth services under the statutory telehealth definitions. If your organization’s compliance logic is “telehealth rules,” you will miss RPM/RTM-specific constraints.
So the compliance question is not “Can we bill something now that thresholds are shorter?” It is: “Is the specific code we billed the one whose unit definition and constraints match the evidence in the record?”
Yes. The traditional supply codes still correspond to a 16–30 day bucket, and 2026 introduces a distinct 2–15 day bucket. You must pick the code that matches the bucket.
That’s exactly the scenario the new 2–15 day bucket is designed to describe. But you still need medical necessity, valid device/data evidence, and clean attribution.
CMS explicitly notes it is adopting the CPT language regarding whether audio-only communication (for example, telephone calls) can count toward the interactive communication portion for relevant RPM/RTM management codes. Operationally: you should treat this as “allowed if it meets the CPT definition,” and you should store the modality in your time log.
Only in narrow incident-to / diagnostic test contexts where “direct supervision” is required; it changes how “immediate availability” can be satisfied (real-time audio-video), not what counts as RPM time or device days.
The likely result: compliance systems that fail to encode attribution + bucket selection + component completeness will look increasingly “out of family” relative to CMS and OIG expectations.
CMS adopted new RPM codes 99445 (for <16 days / the 2–15 day supply bucket) and 99470 (for <20 minutes / first 10 minutes of management time).
CMS adopted new RTM codes for the short supply bucket (98984, 98985, 98986) and a short management-time code (98979).
Yes for the traditional 16–30 day supply codes; 2026 adds a separate 2–15 day option. The compliance requirement is choosing the code whose unit definition matches your evidence.
The bucket structure is explicitly presented as an either/or selection based on actual days of transmission (2–15 vs 16–30). Treat dual billing as non-defensible without extraordinary justification.
Yes for remote physiologic monitoring; RTM does not, per CMS guidance.
No. CMS states only one practitioner can bill RPM per patient in a 30-day period.
No. CMS states you can’t bill remote physiologic monitoring and RTM together.
CMS permits concurrency with specified care management services provided time/effort is not counted twice. Treat this as an evidence-separation requirement, not a billing hack.
OIG found rapid growth, that about 43% of enrollees did not receive all RPM components, and that Medicare lacks key oversight information (including who ordered monitoring). OIG recommended safeguards and improved claim information.
CMS finalized using OPPS data to inform cost assumptions for some remote monitoring services, and the final-rule summary describes using OPPS geometric mean cost data to inform practice expense valuation for the RPM supply codes.
23 must-have items that saved our clients millions.
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