Ext ecg>7d<15d recording
CPT code 93246 covers the professional work of analyzing and interpreting heart rhythm recordings from an extended ECG monitor worn by a patient for 7 to 15 days. This code is for the physician's review and report, not the monitor device itself.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
Billing tips
Always bill 93246 in conjunction with the appropriate hookup code (93241) and recording code (93243) for the same date range to capture complete reimbursement for extended monitoring service
Impact: Billing only 93246 leaves approximately 90% of potential reimbursement uncollected; the recording code 93243 carries the bulk of RVUs for this service
Verify the exact duration of monitoring before coding; if recording is 7 days or less use 93227-93229 series; if 15 days or more use 93247-93248 series to avoid denials
Impact: Duration misclassification results in 100% claim denial and resubmission delays of 30-60 days
Document the specific dates of hookup, recording period, and interpretation date in the medical record and claim to support the duration category billed
Impact: Prevents pre-payment and post-payment audit denials; missing date documentation is the #1 reason for extended monitoring claim reviews
Bill 93246 only once per monitoring period regardless of how many times the physician reviews the data; this is per-encounter billing, not per-day
Impact: Multiple billings of 93246 for the same monitoring period will trigger automatic denials and potential fraud review
Ensure the interpretation report includes symptom correlation, arrhythmia burden quantification, and clinical recommendations to meet documentation requirements
Impact: Incomplete reports are the basis for 15-20% of extended monitoring denials on medical review; comprehensive documentation supports the $11.32 payment
Check LCD/NCD requirements for medical necessity indicators such as frequency of symptoms, prior diagnostic yield, and clinical indication before ordering
Impact: Medical necessity denials cannot be appealed without proper indication documentation; prevents write-offs of the entire monitoring service package
Common denials
Duration mismatch - monitoring period does not fall within 7-15 day window required for 93246
How to appeal: Submit documentation showing exact hookup and device return dates with calendar calculation proving 8-14 day monitoring period; if duration was actually different, withdraw claim and refile with correct code series (93227-93229 or 93247-93248)
Missing or unbundled technical component - 93246 billed without corresponding hookup (93241) and recording (93243) codes
How to appeal: This is typically a billing error, not a denial; submit corrected claim with all three components (93241, 93243, 93246) with matching dates of service and clear indication this is a complete service package
Medical necessity denial - insufficient documentation of clinical indication for extended monitoring rather than standard Holter
How to appeal: Provide clinical notes documenting infrequent symptom pattern (less than daily), failed diagnostic yield from shorter monitoring, or specific guidelines-based indication; include symptom diary showing event frequency requiring 7+ days of monitoring
Duplicate service - previous extended monitoring performed within medically unjustified timeframe
How to appeal: Document interim change in clinical status, new symptoms, post-intervention monitoring requirement, or different clinical indication; include physician attestation of medical necessity for repeat testing with specific justification
Frequently asked questions
What is the difference between CPT 93246 and 93227?
CPT 93227 is for extended ECG monitoring up to 48 hours (interpretation and report), while 93246 is specifically for monitoring lasting more than 7 days but less than 15 days. The duration of monitoring determines which code series to use: 93224-93227 for up to 48 hours, 93228-93229 for 48 hours to 7 days, 93241-93246 for 7-15 days, and 93247-93248 for 15 days or longer.
How much does Medicare pay for CPT 93246 in 2025?
Medicare pays $11.32 for CPT 93246 based on the 2025 national average non-facility rate. This represents only the physician interpretation component; the complete extended monitoring service requires also billing the hookup code 93241 and recording code 93243 for full reimbursement.
Can I bill CPT 93246 alone or does it require other codes?
CPT 93246 should not be billed alone. Extended monitoring services are divided into three separately billable components: hookup/connection (93241), recording/scanning/analysis (93243), and interpretation/report (93246). All three codes should be billed together to represent the complete service and receive full reimbursement.
What RVU value does CPT 93246 have?
CPT 93246 has 0.35 total RVUs consisting of 0 work RVU, 0.34 practice expense RVU, and 0.01 malpractice RVU. The zero work RVU reflects that this is primarily a technical analysis service with minimal physician cognitive work compared to other cardiology interpretations.
When should I use CPT 93246 instead of 93245?
Use CPT 93246 when billing only the interpretation and report component of extended ECG monitoring (7-15 days), while CPT 93245 is used when billing the recording/scanning/analysis component and interpretation together. CPT 93245 is for when the same entity performs both the technical work and professional interpretation; 93246 is for interpretation only when components are split.
What diagnosis codes support medical necessity for CPT 93246?
Common supporting diagnoses include R00.2 (palpitations), R55 (syncope), I48.91 (atrial fibrillation), I49.9 (cardiac arrhythmia unspecified), I47.1 (supraventricular tachycardia), I47.2 (ventricular tachycardia), and Z45.018 (encounter for adjustment of cardiac device). Documentation must justify why extended 7-15 day monitoring is necessary rather than shorter duration Holter monitoring.
How often can CPT 93246 be billed for the same patient?
There is no specific frequency limitation for CPT 93246, but repeated extended monitoring requires clear documentation of medical necessity for each occurrence. Medicare and commercial payers review repeat monitoring within short timeframes (typically within 90 days) for justification such as new symptoms, post-procedure monitoring, medication changes, or inadequate diagnostic yield from prior testing.