Excludes2

  • nystagmus and other irregular eye movements (H55)
  1. H50 Other strabismus

    1. H50.0 Esotropia

      Inclusion term(s):

      • Convergent concomitant strabismus
      1. H50.00 Unspecified esotropia

      2. H50.01 Monocular esotropia

        • H50.011 Monocular esotropia, right eye
        • H50.012 Monocular esotropia, left eye
      3. H50.02 Monocular esotropia with A pattern

        • H50.021 Monocular esotropia with A pattern, right eye
        • H50.022 Monocular esotropia with A pattern, left eye
      4. H50.03 Monocular esotropia with V pattern

        • H50.031 Monocular esotropia with V pattern, right eye
        • H50.032 Monocular esotropia with V pattern, left eye
      5. H50.04 Monocular esotropia with other noncomitancies

        • H50.041 Monocular esotropia with other noncomitancies, right eye
        • H50.042 Monocular esotropia with other noncomitancies, left eye
      6. H50.05 Alternating esotropia

      7. H50.06 Alternating esotropia with A pattern

      8. H50.07 Alternating esotropia with V pattern

      9. H50.08 Alternating esotropia with other noncomitancies

    2. H50.1 Exotropia

      Inclusion term(s):

      • Divergent concomitant strabismus
      1. H50.10 Unspecified exotropia

      2. H50.11 Monocular exotropia

        • H50.111 Monocular exotropia, right eye
        • H50.112 Monocular exotropia, left eye
      3. H50.12 Monocular exotropia with A pattern

        • H50.121 Monocular exotropia with A pattern, right eye
        • H50.122 Monocular exotropia with A pattern, left eye
      4. H50.13 Monocular exotropia with V pattern

        • H50.131 Monocular exotropia with V pattern, right eye
        • H50.132 Monocular exotropia with V pattern, left eye
      5. 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
      6. H50.15 Alternating exotropia

      7. H50.16 Alternating exotropia with A pattern

      8. H50.17 Alternating exotropia with V pattern

      9. H50.18 Alternating exotropia with other noncomitancies

    3. H50.2 Vertical strabismus

      Inclusion term(s):

      • Hypertropia
      1. H50.21 Vertical strabismus, right eye

      2. H50.22 Vertical strabismus, left eye

    4. H50.3 Intermittent heterotropia

      1. H50.30 Unspecified intermittent heterotropia

      2. H50.31 Intermittent monocular esotropia

        • H50.311 Intermittent monocular esotropia, right eye
        • H50.312 Intermittent monocular esotropia, left eye
      3. H50.32 Intermittent alternating esotropia

      4. H50.33 Intermittent monocular exotropia

        • H50.331 Intermittent monocular exotropia, right eye
        • H50.332 Intermittent monocular exotropia, left eye
      5. H50.34 Intermittent alternating exotropia

    5. H50.4 Other and unspecified heterotropia

      1. H50.40 Unspecified heterotropia

      2. H50.41 Cyclotropia

      3. H50.42 Monofixation syndrome

      4. H50.43 Accommodative component in esotropia

    6. H50.5 Heterophoria

      1. H50.50 Unspecified heterophoria

      2. H50.51 Esophoria

      3. H50.52 Exophoria

      4. H50.53 Vertical heterophoria

      5. H50.54 Cyclophoria

      6. H50.55 Alternating heterophoria

    7. H50.6 Mechanical strabismus

      1. H50.60 Mechanical strabismus, unspecified

      2. H50.61 Brown's sheath syndrome

        • H50.611 Brown's sheath syndrome, right eye
        • H50.612 Brown's sheath syndrome, left eye
      3. H50.69 Other mechanical strabismus

        Inclusion term(s):

        • Strabismus due to adhesions
        • Traumatic limitation of duction of eye muscle
    8. H50.8 Other specified strabismus

      1. H50.81 Duane's syndrome

        • H50.811 Duane's syndrome, right eye
        • H50.812 Duane's syndrome, left eye
      2. H50.89 Other specified strabismus

    9. H50.9 Unspecified strabismus

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.