All ICD10 Codes

H50

Non-Billable
ChapterH00–H59
Rankcategory
Official Description

Other strabismus

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 7: Diseases of the Eye and Adnexa (H00-H59).

CH7 Parent Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury (trauma) of eye and orbit (S05.-)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)

H49-H52 Parent Instructions

Excludes2(Not included here)
  • nystagmus and other irregular eye movements (H55)

Clinical Hierarchy

CH7Diseases of the eye and adnexa (H00-H59)
H49-H52Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52)
H50Other strabismus
H50.0Esotropia
H50.1Exotropia
H50.2Vertical strabismus
H50.3Intermittent heterotropia
H50.4Other and unspecified heterotropia
H50.5Heterophoria
H50.6Mechanical strabismus
H50.8Other specified strabismus
H50.9Unspecified strabismus

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to H50:

blockH49-H52
Disorders of ocular muscles, binocular movement, accommodation and refraction (H49-H52)
View context instructions
chapterCH7
Diseases of the eye and adnexa (H00-H59)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to H50. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

25 raw paths
Brown's sheath syndrome1 unique routes
Direct index entry→H50
Cyclophoria1 unique routes
Direct index entry→H50
Cyclotropia1 unique routes
Direct index entry→H50
Duane's syndrome1 unique routes
Direct index entry→H50
Entrapment7 unique routes
muscle(7 variants)
eye(7 variants)
extraocular→H50
oblique(2 variants)
inferior→H50
superior→H50
rectus(4 variants)
inferior→H50
lateral→H50
medial→H50
superior→H50
Esophoria1 unique routes
Direct index entry→H50
Exophoria1 unique routes
Direct index entry→H50
Hyperphoria (alternating)1 unique routes
Direct index entry→H50
Hypertropia1 unique routes
Direct index entry→H50
Hypophoria1 unique routes
Direct index entry→H50
Hypotropia1 unique routes
Direct index entry→H50
Imbalance1 unique routes
eye muscle NOS→H50
Incyclophoria1 unique routes
Direct index entry→H50
Insufficiency, insufficient1 unique routes
muscle
ocular NEC→H50
Microtropia1 unique routes
Direct index entry→H50
Phoria1 unique routes
Direct index entry→H50
Strabismus (congenital) (nonparalytic)3 unique routes
Direct index entry→H50
concomitant→H50
Duane's syndrome→H50

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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