H50.40 Unspecified heterotropia

Billable ICD-10-CM code, FY2026.

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 378.30 Heterotropia, unspecified

Code annotations containing back-references to H50.40

Back-references to H50

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

Diagnosis Index entries for H50.40

• Microtropia
• Strabismus (congenital) (nonparalytic) › concomitant
• Strabismus (congenital) (nonparalytic) › heterotropia

Nearby codes

• H50.33 Intermittent monocular exotropia
• H50.331 Intermittent monocular exotropia, right eye
• H50.332 Intermittent monocular exotropia, left eye
• H50.34 Intermittent alternating exotropia
• H50.4 Other and unspecified heterotropia
• H50.40 Unspecified heterotropia (this code)
• H50.41 Cyclotropia
• H50.411 Cyclotropia, right eye
• H50.412 Cyclotropia, left eye
• H50.42 Monofixation syndrome
• H50.43 Accommodative component in esotropia