Ophthalmology billing and accounts receivable

Ophthalmology bills into two systems at once — the vision plan and the medical carrier — while the surgical side runs on cataract extraction with lens implants, intravitreal injections, laser capsulotomy and glaucoma lasers and stents. Laterality sits on nearly every line, surgical work carries a global period, and retina adds a buy-and-bill drug — any one can sink the claim.

Where the money leaks in ophthalmology

These are the recurring denial reasons in this specialty. They are not exotic. They are the ordinary ones that go unworked because the person who could fix them is at the front desk answering a phone.

• Second-eye cataract surgery denied as a duplicate of the first because the claim carried the wrong eye on the laterality modifier, or went out without one at all.
• Refraction or a routine screening sent to the medical carrier, or a medical complaint billed to the vision plan, with nothing on file putting the non-covered part on the patient.
• Intravitreal injection paid for the administration but not the drug, because the units given and the amount discarded were never written into the note.
• Cataract post-op split with an optometrist but billed as though it was not — no transfer-of-care dates in the chart and no split-care modifiers on either claim.
• Retinal imaging and fundus photography done at the same visit, with one line denied as bundled because the record never gives a separate reason for each test.
• An injection given after the drug authorization lapsed, or under an authorization written for a different agent than the one actually drawn up that day.

What a seat does about it

One trained person works your queue from the difficult end. Every call is logged with the payer reference number and the outcome, so an appeal can quote what was said rather than start again. Denials are categorised, which is how the same reason stops coming back next month. On Friday you get it in writing.

The roles that matter most in this specialty are AR calling and denials at $1,700, prior authorization at $1,900, and certified coding at $2,500.

The codes those turn into

Each of these is a denial code you are likely to meet working ophthalmology, matched to the problem above it in your own words. The route back to payment differs by code, so a queue sorted by recovery route clears faster than one sorted by date.

• CO-16 — Claim lacks information
  Something on the claim is missing or malformed. On its own the code tells you nothing — the detail is in the remark code that comes with it.
  Recovered by being corrected and resubmitted. Matched from: “Second-eye cataract surgery denied as a duplicate of the first because the claim carried the wrong eye on the laterality modifier, or went out without one at all.”
• CO-4 — Modifier and code disagree
  The code and the modifier disagree, or a modifier the payer required was not there.
  Recovered by being corrected and resubmitted. Matched from: “Intravitreal injection paid for the administration but not the drug, because the units given and the amount discarded were never written into the note.”
• CO-252 — Additional documentation required
  The payer will not decide until it sees paperwork. Nothing happens until it arrives.
  Recovered by being answered with the document the payer names. Matched from: “Intravitreal injection paid for the administration but not the drug, because the units given and the amount discarded were never written into the note.”
• CO-50 — Not deemed medically necessary
  The payer does not accept that the documentation supports the service. This is a clinical argument, not a clerical one.
  Recovered by being appealed with clinical documentation. Matched from: “Cataract post-op split with an optometrist but billed as though it was not — no transfer-of-care dates in the chart and no split-care modifiers on either claim.”
• CO-45 — Charge exceeds the fee schedule
  A contractual write-off rather than a denial. It only becomes a problem when the allowed amount is wrong.
  Recovered by being checked against the contract before any work is done. Matched from: “Retinal imaging and fundus photography done at the same visit, with one line denied as bundled because the record never gives a separate reason for each test.”
• CO-198 — Authorization limit exceeded
  An authorization exists. The problem is that you went past what it allowed — more units, more visits, or a longer date range than was approved.
  Recovered by being answered with the document the payer names. Matched from: “Retinal imaging and fundus photography done at the same visit, with one line denied as bundled because the record never gives a separate reason for each test.”

Working a denied claim costs $57.23 per denied claim in administrative time (source), and about about 90% of initially denied claims are eventually paid. Most of what sits in a ophthalmology AR bucket is not lost money. It is money waiting for somebody with the hours to make the call.

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