Does A18.50 require prior authorization?

No, A18.50 does not require prior authorization (high confidence). Covered without prior authorization.

`A18.50`, Tuberculosis of eye, unspecified

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

Document general ophthalmoscopy and biomicroscopy findings in the medical record even when these services are included in extended ophthalmoscopy and not separately billed.
For extended ophthalmoscopy, include a drawing or equivalent documentation that demonstrates the extended nature of the exam to support separate payment.
Orders for CPT 92227 and CPT 92228 must be from the treating physician or other treating practitioner acting within the scope of license and Medicare requirements and this order must be documented in the record.
When extended ophthalmoscopy is performed during a global surgery period and is unrelated to the surgical condition, document the unrelatedness and report modifier -76 or -79 as appropriate.

Extended ophthalmoscopy (CPT 92201, 92202) is payable when documented as an extended ophthalmoscopy that meets indicated standards (e.g., includes a retinal drawing or equivalent documentation) beyond a general ophthalmologic exam.
Fundus photography (CPT 92227, CPT 92228) is covered when ordered by the treating physician or other treating practitioner acting within the scope of his/her license and Medicare requirements.
CPT 92227 is covered when used to evaluate asymptomatic patients at risk with known disease likely to cause retinal disease (e.g., diabetes mellitus) when ordered by the treating physician.
CPT 92228 is a covered service when ordered by the treating physician or other treating practitioner acting within the scope of license and Medicare requirements.
For tests that currently lack specific CPT codes (functional intracellular analysis and total antioxidant function), bill using CPT 84999 and add a note identifying which test was performed in the Remarks area for Part A claims and the Narrative area for Part B claims.
Coverage and reasonable/necessary determinations for assays for vitamins and metabolic function are governed by LCD L34914 and claims must meet that LCD's requirements to be covered.

WPS-J5-L34658, Vitamin D Assay Testing

A57484, Billing and Coding: Vitamin D Assay Testing

NGS-J6-L39995, Pharmacogenomic Testing

A59915, Billing and Coding: Pharmacogenomic Testing

WPS-J8-L34658, Vitamin D Assay Testing

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