Codes that coincide
I12.9 + I15.0Two codes that can’t be billed together on one claim.
Rule: ICD-10-CM Excludes1. UnitedHealthcare Medicare Advantage enforces it on professional claims since March 1, 2026.
Every chart, checked before you sign.
Cortex Lens catches the coding problems that get claims denied or underpaid. Every flag shows the fix and why, straight from your chart and the coding rules.
Works inside Practice Fusion. Read-only, so Lens never changes your chart.
“It’s catching real things, very helpful.”
2,500+
charts checked in Practice Fusion
“I’d do my own research and then check what Cortex says, and it was usually pretty spot-on.”
“My billers will love this as-is. It’s very useful.”
2,500+charts checked in Practice Fusion
400+code pairs caught that payers deny together
180+codes caught missing a left or right
Checked against the rules payers use.
Flags go both ways. If your note doesn’t support a code or a level, Lens says so.
Side not given
M25.569 → M25.561The note says right knee. The code doesn’t.
Rule: Payers including Anthem deny unspecified laterality when a more specific code exists.
Two codes that should be one
E11.9 + N18.32 → E11.22Diabetes and kidney disease coded apart when one code covers both.
Rule: ICD-10-CM “with” convention, Official Guidelines I.A.15.
Visit level
99214 supportedWhether the note supports the level you picked, up or down.
Rule: AMA office visit guidelines, medical decision making table.
Lens points. Your team decides.
Lens reads the chart already open in Practice Fusion. It never edits it. Your team makes every change.
- 1
Lens flags it, with the rule
Every flag names the code, the fix, and the reason, from your chart and the coding rules.
- 2
Your team fixes it in Practice Fusion
Nothing is added or removed for you. Diagnosis questions go to the provider who saw the patient.
- 3
Lens confirms the claim is clean
When the chart matches, the flag turns green. The claim goes out right the first time.
Owners get clean claims without pulling providers off patients.
- Fewer claims kicked back for coding problems.
- Visit levels your notes can back up in an audit.
- Nothing changes in Practice Fusion. Setup takes about 20 minutes.
Billers catch it before the claim goes out.
- Codes that coincide and unspecified codes, flagged on the chart you’re billing.
- The rule, cited, so you can show the provider why.
- Diagnosis questions go to the provider. Lens never guesses a diagnosis.
Your team stays in control of the chart.
How Lens handles patient data →Read-only
Lens never edits your chart or submits a claim.
Names stay behind
Your patient’s name and record number are removed in your browser before a chart is checked.
People decide
Your biller or provider makes every change. Lens suggests. It never acts.
Every flag explains itself
Each one shows why, from your chart and the coding rules.
One price per clinician. Your whole team included.
Practice
$199per clinician / month
- Billers, coders, and office staff free
- Billed annually, or $249 month to month
- Setup with our team
Groups and MSOs
Custom
- 10 or more clinicians, or several locations
- Rollout site by site
- Volume pricing
You pay for prescribing clinicians: MD, DO, NP, or PA. Full pricing
See Lens on a real chart.
A 20-minute walkthrough with our team.