Does Z98.83 require prior authorization?

No, Z98.83 does not require prior authorization (high confidence). Covered without prior authorization.

`Z98.83`, Filtering (vitreous) bleb after glaucoma surgery status

ICD-10-CM

No Prior Auth Required

Covered without prior authorization (high confidence)

For services requiring a referring/ordering physician, the name and NPI of the referring/ordering physician must be reported on the claim.
Medical record documentation by the ordering/referring physician must state the clinical indication/medical necessity for the test and include the test results.
If the performing provider is different from the ordering/referring physician, the performing provider must maintain hard copy test results and interpretation plus copies of the ordering/referring physician's order.
Documentation should contain a history and physical (H&P) supporting the diagnosis for which the corneal pachymetry is being rendered.

Corneal pachymetry (measurement of corneal thickness) is covered to evaluate patients with a diagnosis of increased intraocular pressure.
Repeat corneal pachymetry is covered after interval corneal trauma or corneal surgery to reassess corneal thickness.
Corneal pachymetry is generally covered when performed as indicated by current medical literature or accepted standards of practice for clinical management.
Computerized corneal topography is billable when performed as a diagnostic test for corneal conditions and the claim includes a diagnosis code that best describes the patient's condition for which the service was performed.
Assessment of anterior chamber angle (ACA) configuration and detection of occludable/angle-closure (anterior segment OCT (AS-OCT) may be used for assessment of the anterior chamber angle and as a rapid screening tool for detection of occludable angles; cited studies include Nolan et al. 2007, Pekmezci et al. 2009, Desmond et al. 2022)
None. (The CPB states anterior segment OCT is considered experimental and investigational for all indications; see Limitations below.)

CGS-J15-L34008, Computerized Corneal Topography

J15

CGS-J18-L34008, Computerized Corneal Topography

J18

A56548, Billing and Coding: Corneal Pachymetry

NGS-J6-L33630, Corneal Pachymetry

NGS-JK-L33630, Corneal Pachymetry

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