Does K52.839 require prior authorization?

No, K52.839 does not require prior authorization (high confidence). Covered without prior authorization.

`K52.839`, Microscopic colitis, unspecified

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

This billing and coding guidance complements Local Coverage Determination L34434; follow LCD L34434 for clinical coverage criteria and required documentation for claims.
All services billed with unlisted procedure codes must include sufficient medical records and supporting documentation to allow development and medical review.
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.
When performed for surveillance of colonic neoplasia, report the appropriate CPT/HCPCS procedure code and the appropriate primary ICD-10-CM code plus one of the following secondary diagnosis codes: Z85.038, Z85.048, Z86.0100, Z86.0101, Z86.0102, or Z86.0109.

Colonoscopy/sigmoidoscopy/proctosigmoidoscopy is covered for surveillance of colonic neoplasia in patients with a history of colorectal cancer or colonic polyps.
A follow-up procedure is covered 1 year after surgery for treatment of colorectal cancer when the patient is identified as high-risk for colon cancer and is eligible for continued screenings.
Esophagogastroduodenoscopy (EGD) is covered when it meets the reasonable and necessary requirements specified in Local Coverage Determination L33583.
No specific clinical indications are listed in this article; follow the Local Coverage Determination (LCD) L39400 for indications for magnesium testing or services.
Serum iron testing is consideredmedically necessaryfor any of the following indications:
Evaluation of suspected iron deficiency in individuals who meet any of the following criteria:Abnormal blood counts consistent with iron deficiency including, but not limited to, the following:Decreased mean corpuscular volume (MCV);orDecreased hemoglobin/hematocrit when the MCV is low or normal;orIncreased red cell distribution width (RDW) and low or normal MCV;orEvidence of acute or chronic blood loss including, but not limited to, the following:Gastrointestinal blood loss;orHematuria;orMenorr [...]

A57063, Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy

FIRST_COAST-L33583, Diagnostic and Therapeutic Esophagogastroduodenoscopy

ANTHEM-CG-LAB-21, Serum Iron Testing

A56632, Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy

A59186, Billing and Coding: Magnesium

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