Does H18.9 require prior authorization?

No, H18.9 does not require prior authorization (high confidence). Code is covered without prior authorization.

`H18.9` — Unspecified disorder of cornea

ICD-10-CM

No Prior Auth Required

Code is covered without prior authorization (high confidence)

The medical record must document the ordering provider's assessment related to the patient's complaint prompting external ocular photography, including relevant medical history and physical exam findings supporting medical necessity.
All external ocular photographs must be permanently labeled with the patient's name, date, and notation of which eye is pictured, and copies must be available for Medicare review.
An interpretation and report specific to the photograph(s), including comparison to prior photographs when available, must be maintained in the medical record and available to the contractor upon request.
If additional photographs are taken to track changes, written documentation describing those changes must be maintained in the patient's medical record.

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.
Taped and un-taped visual field testing count as one unit of service for MUE (medically unlikely edits) purposes.
Global visual field services (technical plus professional) are payable under Medicare Part B when billed in place of service: Office (11), Nursing Facility (32), and Independent Clinic (49).
The technical component of visual field testing is payable under Medicare Part B when billed in place of service: Office (11), Nursing Facility (32), Independent Clinic (49), Federally Qualified Health Center (50), and Rural Health Clinic (72).

A57483 — Billing and Coding: Visual Fields

J05

L34615 — Visual Fields

J05

A57637 — Billing and Coding: Visual Field Examination

J09

L33766 — Visual Field Examination

J09

L34393 — Ocular Photography - External

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