Does H59.42 require prior authorization?

No, H59.42 does not require prior authorization (high confidence). Code is covered without prior authorization.

`H59.42` — Inflammation (infection) of postprocedural bleb, stage 2

ICD-10-CM

No Prior Auth Required

Code is 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.
No specific clinical indications are listed in this billing/coding guidance; coverage determinations for MRI of the head and neck follow Local Coverage Determination L34425.
Visual field testing is covered when billed to the Part A or Part B MAC with a valid ICD-10-CM diagnosis code that best describes the patient’s condition and when the service is reasonable and necessary.

A57483 — Billing and Coding: Visual Fields

J05

L34615 — Visual Fields

J05

A56551 — Billing and Coding: Visual Fields Testing

J06

L33574 — Visual Fields Testing

J06

A56729 — Billing and Coding: Magnetic Resonance Imaging of the Head and Neck

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