Does K81.2 require prior authorization?

No, K81.2 does not require prior authorization (high confidence). Code is covered without prior authorization.

`K81.2` — Acute cholecystitis with chronic cholecystitis

ICD-10-CM

No Prior Auth Required

Code is covered without prior authorization (high confidence)

This billing and coding article provides guidelines that complement Local Coverage Determination L34415 for CT of the abdomen and pelvis; consult LCD L34415 for specific coverage indications, limitations, and documentation requirements.
An interpretation and report must be a complete, separately identifiable written report addressing findings, relevant clinical issues, comparative data (when available), and must be included in the medical record.
The patient's medical record must be legible and clearly document the reasonableness and necessity of the ECG and show that the service was necessary for at least one covered condition in the policy.
A laboratory or portable X‑ray supplier that furnishes an ECG must retain the referring physician’s written order and the identity of the employee who took the tracing.

An ECG is covered when the result is relevant to the management, diagnosis, or treatment of the patient.
A separate ECG on the same day as a cardiac stress test is payable only when it provides additional clinically necessary information beyond the stress test (e.g., to rule out acute myocardial infarction prior to performing the stress test).
Rhythm ECGs are covered when used to evaluate signs or symptoms suggesting a cardiac rhythm disorder.
Home-based ECG services (including additional payment above the base ECG amount for transportation) are covered when there is a documented medical need to perform the ECG in the patient's home, typically for homebound or bed-confined patients.
A second professional component (PC) interpretation may be paid when a second physician’s substantially greater expertise is necessary and reasonable to clarify a questionable or confusing ECG finding and contributes substantially to diagnosis or treatment.
S22.21XS | Fracture of manubrium, sequela

A57327 — Billing and Coding: Electrocardiograms

A57802 — Billing and Coding: Hepatic (Liver) Function Panel

A56421 — Billing and Coding: CT of the Abdomen and Pelvis

A57326 — Billing and Coding: Electrocardiograms

L34315 — Electrocardiograms

Ask Verity about documentation requirements, denial risks, or coverage in your state.