FY2016
Effective from
- First observed
Mechanical strabismus
Category — select a more specific code
CDC/NCHS · FY2016nystagmus and other irregular eye movements (H55)
For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.
Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.
Official coding guidelines → · CMS ↗First observed · 2015-10-01
No recorded change since first observation
Effective from
Mechanical strabismus
Category — select a more specific code
CDC/NCHS · FY2016| All editions | Effective from | Code history |
|---|---|---|
| FY2016 | 2015-10-01 | First observed |
| FY2017 | 2016-10-01 | No tabular change |
| FY2018 | 2017-10-01 | No tabular change |
| FY2019 | 2018-10-01 | No tabular change |
| FY2020 | 2019-10-01 | No tabular change |
| FY2020 · April | 2020-04-01 | No tabular change |
| FY2021 | 2020-10-01 | No tabular change |
| FY2021 · 01-01 | 2021-01-01 | No tabular change |
| FY2022 | 2021-10-01 | No tabular change |
| FY2022 · 04-01 | 2022-04-01 | No tabular change |
| FY2023 | 2022-10-01 | No tabular change |
| FY2023 · 04-01 | 2023-04-01 | No tabular change |
| FY2024 | 2023-10-01 | No tabular change |
| FY2024 · 04-01 | 2024-04-01 | No tabular change |
| FY2025 | 2024-10-01 | No tabular change |
| FY2025 · 04-01 | 2025-04-01 | No tabular change |
| FY2026 | 2025-10-01 | No tabular change |
| FY2026 · April | 2026-04-01 | No tabular change |
| FY2027 | 2026-10-01 | No tabular change |
The official Tabular List has no additional instructions at this code level.
Review the instructions inherited from its parent categories below. Inherited instructions ↓
Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
nystagmus and other irregular eye movements (H55)
H50.60Mechanical strabismus, unspecifiedBillable / specificH50.61Brown's sheath syndromeCategory · further specificity requiredH50.62Inferior oblique muscle entrapmentCategory · further specificity requiredH50.63Inferior rectus muscle entrapmentCategory · further specificity requiredH50.64Lateral rectus muscle entrapmentCategory · further specificity requiredH50.65Medial rectus muscle entrapmentCategory · further specificity requiredH50.66Superior oblique muscle entrapmentCategory · further specificity requiredH50.67Superior rectus muscle entrapmentCategory · further specificity requiredH50.68Extraocular muscle entrapment, unspecifiedCategory · further specificity requiredH50.69Other mechanical strabismusBillable / specificOther entries in the same category; these are not automatic substitutes.
| Code | Description | Category · further specificity required |
|---|---|---|
| H50.0 | Esotropia | Category · further specificity required |
| H50.1 | Exotropia | Category · further specificity required |
| H50.2 | Vertical strabismus | Category · further specificity required |
| H50.3 | Intermittent heterotropia | Category · further specificity required |
| H50.4 | Other and unspecified heterotropia | Category · further specificity required |
| H50.5 | Heterophoria | Category · further specificity required |
| H50.8 | Other specified strabismus | Category · further specificity required |
| H50.9 | Unspecified strabismus | Billable / specific |
Official titles and instructions are preserved in their source language. Official sources ↗