ICD-10-CM › H00-H59 › H49-H52 › H50.1 Exotropia › H50.18
H50.18
Alternating exotropia with other noncomitancies
ValidICD-10-CM diagnosis code.
Valid for claims with a date of service in the current code year.
What has happened to this code
Every change the publisher made, from 2007 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2007 Added to the draft code set draft Alternating exotropia with other noncomitancies
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
- Exotropia
- Heterotropia
- Syndrome > eye retraction
- Disease, diseased > eye > muscle
- Disease, diseased > muscle > ocular
- Cicatrix > muscle > with contracture
- Insufficiency, insufficient > muscle
- Strabismus > concomitant > divergent
- Contraction, contracture, contracted > ocular muscle
- Contraction, contracture, contracted > muscle NEC > eye
- Contraction, contracture, contracted > paralytic > muscle
- Contraction, contracture, contracted > muscle NEC > extraocular
- Strabismus > divergent concomitant > alternating > with > specified noncomitances NEC
Codes in the same group
| Code | Description | Status |
|---|---|---|
| H50.10 | Unspecified exotropia | Valid |
| H50.11 | Monocular exotropia | Not billable |
| H50.12 | Monocular exotropia with A pattern | Not billable |
| H50.13 | Monocular exotropia with V pattern | Not billable |
| H50.14 | Monocular exotropia with other noncomitancies | Not billable |
| H50.15 | Alternating exotropia | Valid |
| H50.16 | Alternating exotropia with A pattern | Valid |
| H50.17 | Alternating exotropia with V pattern | Valid |