ICD-9-CM Codes ICD-9-PCS Codes

9521 - Electroretinogram [ERG]

GEM Conversion to ICD-10 PCS

4A0.7X0Z

Fs: 10000 – Measurement of Visual Acuity, External Approach

Sibling Codes

952.1

Electroretinogram [ERG]

952.2

Electro-oculogram [EOG]

952.3

Visual evoked potential [VEP]

952.4

Electronystagmogram [ENG]

952.5

Electromyogram of eye [EMG]

952.6

Tonography, provocative tests, and other glaucoma testing