H34.21 Partial retinal artery occlusion

Non-billable header with 4 child codes.

Applicable to

• Hollenhorst's plaque
• Retinal microembolism

Applies from H34 Retinal vascular occlusions

Excludes1 (never code together)

• amaurosis fugax (G45.3)

Codes under H34.21

• H34.211 Partial retinal artery occlusion, right eye
• H34.212 Partial retinal artery occlusion, left eye
• H34.213 Partial retinal artery occlusion, bilateral
• H34.219 Partial retinal artery occlusion, unspecified eye

Code annotations containing back-references to H34.21

Back-references to H34

• Type 2 Excludes: I74 Arterial embolism and thrombosis ("ophthalmic embolism and thrombosis (H34.-)")
• Type 2 Excludes: I74 Arterial embolism and thrombosis ("retinal embolism and thrombosis (H34.-)")

Diagnosis Index entries for H34.21

• Occlusion, occluded › artery › retinal › partial

Nearby codes

• H34.10 Central retinal artery occlusion, unspecified eye
• H34.11 Central retinal artery occlusion, right eye
• H34.12 Central retinal artery occlusion, left eye
• H34.13 Central retinal artery occlusion, bilateral
• H34.2 Other retinal artery occlusions
• H34.21 Partial retinal artery occlusion (this code)
• H34.211 Partial retinal artery occlusion, right eye
• H34.212 Partial retinal artery occlusion, left eye
• H34.213 Partial retinal artery occlusion, bilateral
• H34.219 Partial retinal artery occlusion, unspecified eye
• H34.23 Retinal artery branch occlusion