H50.16 Alternating exotropia with A pattern

Billable ICD-10-CM code, FY2026.

Applies from H50.1 Exotropia

Applicable to

• Divergent concomitant strabismus

Excludes1 (never code together)

• intermittent exotropia (H50.33-, H50.34)

MS-DRG index

Defines the logic of DRG(s) 124-125 in MDC 02.

Approximate ICD-9-CM (GEMs)

• 378.16 Alternating exotropia with A pattern

Code annotations containing back-references to H50.16

Back-references to H50

• Type 2 Excludes: H53.03 Strabismic amblyopia ("strabismus (H50.-)")

Diagnosis Index entries for H50.16

• Strabismus (congenital) (nonparalytic) › divergent concomitant › alternating › with › A pattern

Nearby codes

• H50.132 Monocular exotropia with V pattern, left eye
• H50.14 Monocular exotropia with other noncomitancies
• H50.141 Monocular exotropia with other noncomitancies, right eye
• H50.142 Monocular exotropia with other noncomitancies, left eye
• H50.15 Alternating exotropia
• H50.16 Alternating exotropia with A pattern (this code)
• H50.17 Alternating exotropia with V pattern
• H50.18 Alternating exotropia with other noncomitancies
• H50.2 Vertical strabismus
• H50.21 Vertical strabismus, right eye
• H50.22 Vertical strabismus, left eye