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CO-273 denial code

Code 273 is the twin of 272 and the difference is one word. Exceeded, not unmet. Something has a ceiling and you went past it, and documentation does not usually move a ceiling.

The code list's own wording: Coverage/program guidelines were exceeded.

What it means
A limit in the plan or the programme was reached. Frequency, quantity, duration or age. The service is covered in principle and this instance is over the line.
Who owes the money
Read the letters CO makes it your write-off. PR puts it on the patient, which is common on limits, because the plan's position is that it covered what it promised and the rest is the patient's choice.
Is appealing worth it
Usually not. A limit is a number in a document. The two exceptions are worth knowing: the payer counted wrong, or the plan itself writes an exception you meet.

Check the count before you accept it. This is the one thing worth doing on every 273. Payers count across all providers, so a visit at another office lands in your patient's total. They also occasionally count a resubmitted claim twice. Ask for the dates that make up the count rather than the total.

Why the payer sent it

Remark codes you will see with it

Remark codeWhat it adds
N640Exceeds the number or frequency approved or allowed within the time period. The clearest confirmation. See N640.
N362The number of days or units exceeds the acceptable amount.
N129Not eligible due to the patient's age.
M86Already paid for the same or similar procedure within a set time frame. See M86.
N130Read the plan document. Its own page.

Read the letters in front of the 273

CO-273
Contractual obligation. Your write-off.
PR-273
Patient responsibility. Common on limit denials, and the patient can usually be billed.
PI-273
Payer initiated. The patient owes nothing.

What to do next

  1. Ask for the dates behind the count

    Not the total. The list. That is where a duplicate or another provider's claim becomes visible, and those are the two things that make a limit denial wrong.

    If a date is duplicated: reprocessing request with the specific claim number. Payers act on those quickly.
  2. Look for an exception in the plan's own words

    Plans that write limits often write exceptions next to them. If the plan names one and your patient meets it, that is a real appeal with a short argument.

  3. Find the next eligible date and use it

    The most useful output of this whole denial. Patients accept dates. Say when the plan covers this again and offer the appointment.

  4. Decide about the patient balance

    On a PR line the patient generally owes it. Check whether your contract requires prior written agreement for services beyond a plan limit, because several do.

Codes that get mixed up with 273

CodeHow it differs from 273
272Guidelines not met rather than exceeded. A condition missed, which records can answer. See CO-272.
119Benefit maximum for the period. Money ran out rather than a count. See CO-119.
151The information does not support this many. A documentation judgment rather than a fixed limit. See CO-151.
35Lifetime maximum reached. Permanent rather than per period. See PR-35.

Code 273 in dental

Dentistry is the home of the counted benefit, so this code fits it well. Two cleanings a year, bitewings once a period, one crown per tooth per number of years, fluoride to a certain age. All of them produce a 273 when the count is passed.

The replacement clock is the one that catches people

A plan that pays for a crown once every five or seven years counts from the date of the previous one, including one placed by a different dentist. A patient who moved practices will not know, and the front desk cannot see it. Asking the carrier for the last placement date before treatment is the only reliable check.

A count across offices is still a count

Cleanings done elsewhere in the same year use the patient's allowance. This is the most common reason a limit denial surprises everyone, and it is also the easiest to explain to a patient once you have the dates.

Questions people ask about CO-273

Can I appeal a CO-273?

Usually not on the merits, because a limit is a number in the plan. Two things are worth checking: whether the payer counted correctly, and whether the plan writes an exception your patient meets. Ask for the dates behind the count rather than the total, because that is where a duplicate or another provider's claim shows up.

What is the difference between CO-272 and CO-273?

A 272 means a condition attached to the service was not met, which documentation can often fix. A 273 means a limit was exceeded, which documentation usually cannot. Same family, opposite prospects.

Does another dentist's work count against my patient's limit?

Yes. Plans count across all providers. A cleaning or a crown done at another office uses the patient's allowance, and neither you nor the patient can see that history without asking the carrier.

Related codes

Back to all denial codes

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