H50.639 Inferior rectus muscle entrapment, unspecified eye

Billable ICD-10-CM code, FY2026.

MS-DRG index

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

Code annotations containing back-references to H50.639

Back-references to H50

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

Nearby codes

• H50.622 Inferior oblique muscle entrapment, left eye
• H50.629 Inferior oblique muscle entrapment, unspecified eye
• H50.63 Inferior rectus muscle entrapment
• H50.631 Inferior rectus muscle entrapment, right eye
• H50.632 Inferior rectus muscle entrapment, left eye
• H50.639 Inferior rectus muscle entrapment, unspecified eye (this code)
• H50.64 Lateral rectus muscle entrapment
• H50.641 Lateral rectus muscle entrapment, right eye
• H50.642 Lateral rectus muscle entrapment, left eye
• H50.649 Lateral rectus muscle entrapment, unspecified eye
• H50.65 Medial rectus muscle entrapment