Decode the denial. Fix the workflow that caused it.
Denial patterns are not random. Each one points to a workflow upstream that produced it. This is the working catalog. Every Claim Adjustment Reason Code (CARC) traced to its real cause, plus the automation patterns that prevent it next time.
Six denial codes. Six workflow stories.
Each code page reads the same way. What the code says. What it actually means in practice. The workflow that produced it. The fix that prevents the next one.
CARC 16
Claim/service lacks information or has billing/coding errors. The most common denial across every specialty. Usually fixable at intake.
Read the patternCARC 16 with RARC
The Remittance Advice Remark Code (RARC) attached to a CARC 16 is what tells you which field actually failed. Without it you are guessing.
Read the patternCARC 119
Benefit maximum has been reached. A boundary problem masquerading as a billing problem. The fix is at eligibility, not appeal.
Read the patternCARC 4
The procedure code is inconsistent with the modifier used. Modifier discipline at coding is the only durable fix.
Read the patternCARC 49
Routine, preventive service. The CARC that catches up to a billing chart that did not document the encounter type correctly.
Read the patternCARC 97
Bundling. The benefit for this service is included in the payment for another service already adjudicated. National Correct Coding Initiative (NCCI) edits at the source.
Read the patternPatterns, productized.
When a denial pattern repeats often enough, the fix becomes a module. These are the productized versions of the workflow patterns that hold up under traffic.
The Universal Translator
The ETL pipeline that standardizes data across disparate source systems. Pulls HL7 messages from multiple sending systems, each on a different version, and lands them in one common schema. Patient demographics, provider info, ICD-10, CPT, and encounter metadata all map to the same fields regardless of source.
Open the moduleThe Front-End Guard
Eligibility, authorization, and benefit checks at intake. The workflow that prevents the denial pattern before the claim ever leaves the building.
Open the moduleHow a pattern gets written.
Every pattern page on this site is built the same way. No exceptions.
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01
Pattern
What the code says, in plain language. Not the payer manual definition. The operator definition.
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02
Cause
The workflow upstream that actually produced the denial. Eligibility miss. Modifier mismatch. Authorization gap. Coding choice. Front-desk capture.
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03
Fix
The specific change to the workflow. Not "train staff." Not "review claims." The exact rule, the exact gate, the exact field.
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04
Receipt
The evidence that the fix worked. Denial-rate delta, first-pass-rate delta, days-in-A/R movement on the ninety-day method.
Tell us which denial code is eating your week.
If a CARC is hitting your A/R hard and is not in the catalog yet, we will write it next. Send the code and the volume. We respond within two business days.