KOH Preparation

For Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.

Test Code

Alias/See Also
Calcofluor White Fungal Stain;
Fungal KOH;
KOH (comment: Hair, Skin, or Nails);

CPT Codes

Preferred Specimen
Aseptically collected specimen in sterile, leak proof container.

Specimens of hair, skin or nails should be kept dry and at room temperature

Transport Container
Sterile Container

Transport Temperature
Room Temperature

Specimen Stability
Room Temperature = 5 days
Refrigerated = 5 days
Frozen = unacceptable

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Frozen specimen.

KOH Prep (Potassium Hydroxide Preparation)

Setup Schedule
Monday - Friday

Report Available
3 days

Clinical Significance
A KOH Preparation allows the rapid detection of fungi from patient samples and, if positive, indicate the presence of a fungal infection.

Performing Laboratory
Compunet Clinical Laboratories, LLC
2308 Sandridge Drive
Moraine, OH 45439

Last Updated: November 22, 2021

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.