Does H18.462 require prior authorization?

No, H18.462 does not require prior authorization (high confidence). Code is covered without prior authorization.

`H18.462` — Peripheral corneal degeneration, left eye

ICD-10-CM

No Prior Auth Required

Code is covered without prior authorization (high confidence)

The medical record must include the ordering provider's assessment relevant to the patient's complaint for that visit.
The medical record must include relevant medical history related to the service.
The medical record must include results of pertinent tests and procedures; for diagnostic tests report the actual test result if known, otherwise report the symptoms prompting the test.
All office visit records and operative reports must be signed and dated; all services ordered or rendered to Medicare beneficiaries must be signed.

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.
External ocular photography is covered when ordered by an authorized/referring provider to document, diagnose, or monitor an ocular condition and when medical record documentation supports medical necessity.
External ocular photographs are covered to track changes in a patient's ocular condition provided changes are documented in writing and compared to prior photographs when available.
Technical (TC) and professional (26) components of external ocular photography are payable under Part B when billed with the appropriate modifier and performed in allowable places of service as specified by Medicare.

A57483 — Billing and Coding: Visual Fields

J05

L34615 — Visual Fields

J05

A56548 — Billing and Coding: Corneal Pachymetry

J06

L33630 — Corneal Pachymetry

J06

L33766 — Visual Field Examination

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