CARC CO-197UnitedHealthcareOB/GYN

UHC CO-197 Prior Auth Denials in OB/GYN

Precertification / authorization / notification absent. Copy-paste appeal letter with documented overturn rate and attachment checklist for UnitedHealthcare in OB/GYN.

CARC
CO-197
Denial code
Typical window
180 days
Verify on your EOB
Overturn
55-70
With documentation
Filing Type
Formal Appeal
Clinical dispute

Verify before filing

Filing deadlines, appeal addresses, and policy criteria in this template reflect typical payer behavior at publication. UnitedHealthcare updates policies frequently and plan-level rules vary by employer group, state, and line of business. Always cross-check the specific deadline and filing address on your EOB, and confirm current UnitedHealthcaremedical-policy language through the payer’s provider portal before submitting an appeal. Overturn-rate language below reflects AAPC-reviewer consensus, not payer-published statistics.

When to use this template

UHC CO-197 denials in OB/GYN concentrate on hysteroscopy (58558), diagnostic/therapeutic laparoscopy (58661, 58671), and detailed/specialized ultrasound studies. UHC requires prior authorization for all inpatient and most outpatient surgical procedures. Practices that rely on historical "no auth needed" for quick outpatient procedures get caught regularly.

Attachment checklist

  • Ordering provider note with clinical indication
  • Prior workup or conservative-care documentation
  • Payer medical policy reference citing met criteria
  • Retroactive authorization request (if applicable)

Missing any one of these is the single largest cause of appeal denials. Build a pre-filing checklist before you submit.

Copy-paste letter template

Swap in your patient details at every [bracketed field]. Attach the documentation listed above. Submit within 180 days of the original adjudication.

UnitedHealthcare / CO-197 / OB/GYN appeal template~168 words
[Practice Letterhead]
[Date]

UnitedHealthcare Provider Appeals

Re: Appeal of CO-197 Denial
Member: [Patient Name]
Member ID: [Member ID]
DOS: [date]
Claim: [number]
CPT: [e.g., 58558 Hysteroscopy with biopsy]

To Whom It May Concern:

We appeal the CO-197 denial. Medical necessity is supported and retro-auth is requested.

Clinical Indication:
[Patient], [age], G[x]P[x] with [abnormal uterine bleeding, ICD-10]. Prior workup:
- Ultrasound [date]: [findings]
- Endometrial biopsy [date]: [result]
- Hormonal trial: [medication, duration, response]

Hysteroscopy medically indicated for [specific reason, persistent AUB, suspected polyp, diagnostic].

Documentation attached:
1. H&P, imaging, lab results
2. Prior treatment documentation
3. Retro-auth request filed [date]

[Dr. Name] is available for peer-to-peer.

Sincerely,
[Name]
Pro tip

Request retroactive authorization first (within 30 days of denial), before escalating to a formal appeal. Most prior-auth CO-197 denials are resolved faster via retro-auth than the full appeal pathway.

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Want the full playbook for this scenario?

The complete playbook page covers why UnitedHealthcare throws CO-197 specifically in ob/gyn, the exact fix workflow, filing deadlines, high-risk CPTs, and FAQs. Plus this same copy-paste letter.

Read the full playbook
FAQ

Common questions on this template

How long do I have to file a CO-197 appeal with UnitedHealthcare?

180 days from the initial adjudication date for most UnitedHealthcare plans. Corrected claims (for administrative fixes like missing modifiers or auth numbers) have a different and usually longer window. Always confirm the specific deadline on the EOB for your claim.

What is the typical overturn rate for this denial type?

55-70 percent with complete workup documentation. Success depends heavily on documentation completeness and whether the clinical criteria in UnitedHealthcare's medical policy are matched point-by-point in the appeal.

Should I file this as a corrected claim or a formal appeal?

CO-197 denials are usually formal clinical appeals. The template below follows the formal-appeal structure. Use a corrected claim only if the fix is administrative (a missing modifier, wrong NPI) rather than clinical.

Can I reuse this template for other payers?

The structure works for any payer, but the filing address, deadline, and policy references are specific to UnitedHealthcare. Check our other templates for payer-specific versions; we have 50+ payer/code combinations in the directory.

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