Cardiology Billing Services / CY2026 PFS

Stack RPM, RTM and CCM in the same month without voiding the claim

Short answer for a cardiology practice: under the CMS CY2026 Physician Fee Schedule you can bill Chronic Care Management alongside remote monitoring in the same 30 days for the same patient. You cannot bill RPM and RTM management time together, and 99454 quietly disappears the moment the device sends fewer than 16 days of readings.

CCM + RPM same month OK CCM + RTM same month OK RPM mgmt + RTM mgmt not together 99091 + 99457 not together

The numbers that decide the claim

The 2026 threshold wall

Every remote-monitoring denial in cardiology traces back to one of these numbers. They are code definitions and CMS requirements, not estimates.

99454 / 9897716days

Minimum days of device data inside a 30-day window before the supply code is billable

window30days

The rolling period RPM and RTM device codes are measured across, not a calendar month

99457 / 9898020min

Interactive treatment-management time per code, with a live patient or caregiver interaction

9949020min

Clinical-staff time for base CCM, directed by the physician under a care plan

9909130min

Physician or QHP data collection and interpretation, the non-16-day monitoring alternative

994531x setup

Device education and set-up, billed once per episode of monitoring, not monthly

99458+20min

Each additional RPM management increment stacked on 99457 in the same period

CCM2+chronic

Conditions expected to last 12 months or to end of life, the CCM eligibility floor

Same patient, same month

What actually stacks

A cardiology patient with heart failure and hypertension often qualifies for CCM and remote monitoring at once. Here is which pairs Medicare lets you bill together in a single 30-day period. Where you may bill both, the same minute can never be counted twice.

Pair	Codes involved	Same-month verdict	The catch
CCM + RPMcare mgmt + monitoring	99490/99439 + 99457/99458	Bill both	Time spent on RPM management cannot also be logged toward the CCM 20 minutes.
CCM + RTMcare mgmt + therapy monitoring	99490 + 98980/98981	Bill both	Separate time logs required; RTM covers therapy adherence, not physiologic data.
Complex CCM + RPMhigh-acuity HF panel	99487/99489 + 99454/99457	Bill both	Complex CCM needs moderate-to-high MDM and a documented substantial care-plan revision.
RPM mgmt + RTM mgmttwo monitoring streams	99457/99458 + 98980/98981	Not together	CMS treats the two treatment-management services as overlapping; pick the stream that fits the device.
99091 + RPM mgmttwo ways to bill monitoring	99091 + 99457/99458	Not together	99091 is the alternative monitoring bill; it is mutually exclusive with 99457/99458 in the period.
CCM + PCMcare mgmt overlap	99490 + 99424/99426	Not together	Chronic and Principal Care Management are mutually exclusive for the same patient, same month.
Only one device codeper 30 days	99454 (RPM) or 98977 (RTM)	One only	A single supply code per patient per 30 days, whichever monitoring program you run.

Operator note. The green rows are where cardiology leaves money on the table. A patient already enrolled in RPM for a BP cuff or implantable monitor is frequently CCM-eligible on the same chart. Layer the care-management code, keep two clean time logs, and both claims stand.

The four code families on a cardiology chart

Know what each bucket pays for

RPM

Remote Physiologic Monitoring

99453 / 99454 / 99457 / 99458

99453 set-up, once per episode
99454 device supply, needs 16 days of data
99457 first 20 min interactive management
99458 each added 20 min
Fits BP, weight, pulse ox, implantable sensors

RTM

Remote Therapeutic Monitoring

98975 / 98976-78 / 98980 / 98981

98975 set-up and education
98976-98978 device supply, also 16-day rule
98980 first 20 min management
98981 each added 20 min
Therapy adherence and response, not raw physiologic data

CCM

Chronic Care Management

99490 / 99439 / 99487 / 99489

99490 first 20 min clinical staff
99439 each added 20 min, staff
99487/99489 complex CCM tiers
Needs 2+ chronic conditions and a care plan
Stacks with RPM and RTM the same month

Alt

Physician Data Review

99091 + G0511 (RHC/FQHC)

99091 physician/QHP, 30 min per 30 days
No 16-day device threshold attached
Cannot pair with 99457/99458
G0511 is the RHC and FQHC bundled care-mgmt bill
Use when the reviewer is the physician, not staff

Where the claim quietly dies

The 16-day threshold trap

99454 and the RTM supply codes require at least 16 days of readings inside the 30-day window. Miss it by one day and the supply code is not billable. The trap: teams assume the whole monitoring claim collapses. It does not. The management time survives.

STEP 01

Device transmits

Patient sends BP and weight readings across the 30-day window. Each qualifying day counts once.

STEP 02

Count the days

Tally distinct days with data. This is the single gate CMS checks on the 99454 line.

STEP 03A

Under 16 days

99454 voids for the period. Do not resubmit it. But 99457 management time can still stand on its own.

STEP 03B

16 days or more

99454 is billable. Add 99457 and any 99458 increments earned by documented interactive time.

Because 99457 and 99458 are timed on interactive management rather than device days, a well-run practice still bills the management work in a short-data month. The mistake is writing off the whole encounter when only the supply line failed.

One clean 30-day cycle

How a compliant cardiology month is built

DAYS 1-7

Enroll and set up

Consent captured, device issued, 99453 education logged once. CCM care plan confirmed for the qualifying conditions.

DAYS 8-20

Accrue device days

Readings post daily. Watch the running count toward 16. Clinical staff log CCM minutes in a separate ledger.

DAYS 21-28

Interactive review

Physician or staff complete the live 20-minute RPM management. Note the interaction so 99457 holds.

DAY 30

Reconcile and bill

Confirm 16 days, split RPM and CCM time cleanly, then submit 99454, 99457 and 99490 together with no double-counted minutes.

Cited by name, no invented figures

The 2026 rules behind every line above

CMS Calendar Year 2026 Medicare Physician Fee Schedule Final RuleRemote monitoring and care-management payment policy for the year
CPT codes 99453, 99454, 99457, 99458 (Remote Physiologic Monitoring)AMA CPT, adopted in the CY2026 PFS
CPT code 99091, physician collection and interpretation of physiologic data30-minute monthly monitoring alternative
CPT codes 98975 through 98981 (Remote Therapeutic Monitoring)Set-up, device supply and treatment-management
The 16-day data requirement for 99454 and RTM device supply codesMinimum monitoring days per 30-day period
Chronic Care Management concurrency rules, CPT 99490/99439/99487/99489CCM billable with RPM and RTM, same month, no double-counted time
CMS MLN Booklets on Remote Patient Monitoring and Chronic Care ManagementProgram requirements and documentation standards
American College of Cardiology remote monitoring guidanceSpecialty-society context for cardiology programs

CY2026 rulemaking continues to revisit shorter-duration monitoring. Confirm any newly finalized code numbers and the exact 16-day language against the published CY2026 PFS Final Rule and your MAC before you change your fee schedule.

Bill the full stack, not half of it

Most cardiology groups under-bill the concurrency that CMS permits and over-bill the 99454 line that quietly voids. ASP-RCM Solutions runs the day-count checks, splits RPM and CCM time cleanly, and holds the management codes that survive a short-data month, so your remote-monitoring program actually pays for itself.

Talk to our cardiology billing team →