ICD-10-CM › H00-H59 › H49-H52 › H50.3 Intermittent heterotropia › H50.31

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 2 more specific codes instead:

• H50.311 Intermittent monocular esotropia, right eye
• H50.312 Intermittent monocular esotropia, left eye

What has happened to this code

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from the H49-H52 section Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52)

Excludes2 - not included here

• nystagmus and other irregular eye movements (H55)

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

• Squint
• Cross-eye
• Esotropia
• Heterotropia
• Squint > accommodative
• Syndrome > eye retraction
• Disease, diseased > eye > muscle
• Disease, diseased > muscle > ocular
• Cicatrix > muscle > with contracture
• Insufficiency, insufficient > muscle
• Strabismus > concomitant > convergent
• Contraction, contracture, contracted > ocular muscle
• Contraction, contracture, contracted > muscle NEC > eye
• Contraction, contracture, contracted > paralytic > muscle
• Contraction, contracture, contracted > muscle NEC > extraocular
• Strabismus > convergent concomitant > monocular > intermittent

Codes in the same group

Code	Description	Status
H50.30	Unspecified intermittent heterotropia	Valid
H50.32	Intermittent alternating esotropia	Valid
H50.33	Intermittent monocular exotropia	Not billable
H50.34	Intermittent alternating exotropia	Valid