Does Z49.32 require prior authorization?

No, Z49.32 does not require prior authorization (high confidence). Covered without prior authorization.

`Z49.32`, Encounter for adequacy testing for peritoneal dialysis

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

Medical records must document the medical necessity of the serum magnesium test, including the signs, symptoms, and/or diagnosis that prompted the test.
Laboratories must maintain the physician's order for the serum magnesium test in their records.
Medical records must contain the serum magnesium lab test results.
When requesting individual consideration through written redetermination, providers must include all relevant medical records and supporting literature.

No specific clinical indications are listed in this article; follow the Local Coverage Determination (LCD) L39400 for indications for magnesium testing or services.
None — Aetna considers the Crit-Line In-Line Monitor (In-Line Diagnostics, Kaysville, UT) experimental and investigational for monitoring hematocrit and oxygen saturation of members because the effectiveness of the Crit-Line In-Line Monitor in avoiding intra-dialytic morbid events, in preventing ischemia due to intra-dialytic hypoxia, and in determining access re-circulations has not been proven.
No covered indications identified. Hemodialysis for the treatment of schizophrenia is considered experimental and investigational because the effectiveness of this approach has not been demonstrated and established.
Acanthamoeba in corneal ulceration
Actinomyces, for identification of actinomyces species in tissue specimens
Adenovirus, to diagnose adenovirus myocarditis, and to diagnose adenovirus infection in immunocompromised hosts, including transplant recipients

ANTHEM-CG-LAB-21, Serum Iron Testing

AETNA-CPB-0291, Hemodialysis for Schizophrenia

AETNA-CPB-0373, Crit-Line In-Line Monitor

AETNA-CPB-0650, Polymerase Chain Reaction Testing: Selected Indications

A57189, Billing and Coding: Serum Magnesium

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