Internal Medicine Billing

Every line. Every code. Every dollar — translated.

63%

of internist claims are undercoded.

Not rejected. Not denied. Just quietly short. Your E/M level was documented correctly and billed one level too low. Clarity shows you exactly where, and exactly how much it costs.

See What You're Leaving on the TableNo forms. No commitment.
01 / Diagnosis
$0K

average annual revenue lost per internist to modifier errors alone

38%Modifier -25 misuse
29%E/M downcoding
18%Unbundling errors

Your billing isn't broken.
It's just speaking the wrong language.

A 99214 documented as a 99213. A procedure that needed a -25 modifier filed without one. These aren't catastrophic errors — they're quiet ones. Multiplied across a panel of 800 patients, they become the revenue gap you can't explain at year-end.

Clarity reads your claims history the way an experienced biller does — except it flags every pattern, names every payer rule, and tells you in plain English what to fix and what to refile.

Real example, anonymized

A solo internist in her third year of practice was filing 99213 for 71% of her established patient visits. Her documentation supported 99214 in 58 of those cases. Annual difference: $31,200.

02 / Evidence

Payer by payer.
Code by code.

Denial patterns aren't random. They follow payer-specific rules that most billing software never checks.

Medicare

18.4%

denial rate

Medical necessity not documented for E/M level billed

UnitedHealth

22.1%

denial rate

Modifier -25 absent on same-day procedure and E/M

Aetna

19.7%

denial rate

Bundled service billed separately (NCCI edits)

BCBS

16.2%

denial rate

Time-based E/M missing total time documentation

99214 → 99213

E/M Level Downcoding

+$38 per visit

MDM documented at moderate complexity; billed at low

Modifier -25

Same-Day Procedure Gap

+$95 per encounter

Preventive visit + acute problem addressed — E/M omitted

99497

Advance Care Planning

+$86 per session

Documented but not billed — 23 min threshold often met

Get Your Free Billing Audit

Takes 2 minutes. No billing system access required.

03 / Resolution

The same EOB.
Finally readable.

EOB — Before Clarity
DOS:02/14/2026
POS:11
CPT:99213-25← undercoded + modifier error
DX:Z00.00 / J06.9
CHARGE:$185.00
ALLOWED:$112.40
PAID:$0.00← DENIED
REMARK:CO-4 / PR-96← what does this mean?
Clarity Translation
Actionable

What happened

You billed a 99213 (low complexity) but your documentation — 3 chronic conditions reviewed, 2 medication changes, new acute complaint — clearly supports 99214 (moderate complexity).

The modifier error

Modifier -25 was attached to 99213. UnitedHealth requires -25 only on E/M codes when a separate procedure is performed the same day. Here, no procedure was billed — the modifier triggered an automatic review and denial.

The remark codes

CO-4 = the procedure code is inconsistent with the modifier. PR-96 = non-covered charge because the patient has coverage limitations — but only for this code combination.

What to do

Refile as 99214 without modifier -25. Attach the corrected claim to payer portal within 180 days. Expected reimbursement: $168.20.

94%

of refiled claims paid on first resubmission

12 min

average time to understand a denial with Clarity

$168

recovered per corrected E/M claim on average

180 days

timely filing window — Clarity tracks every deadline

04 / Start Recovering

Pick up the money
off the floor.

Five data points. One exhale. The path forward is just arithmetic — and Clarity does the math.

$42,000average annual revenue recovered per internist

No form on this page. No commitment. Just an audit.