ICD-10-CM Code H49.0
Third [oculomotor] nerve palsy
Non-Billable CodeNon-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.
ICD Code H49.0 is a non-billable code. To code a diagnosis of this type, you must use one of the four child codes of H49.0 that describes the diagnosis 'third [oculomotor] nerve palsy' in more detail.
- H49.0 Third [oculomotor] nerve palsy NON-BILLABLE
The ICD code H490 is used to code Oculomotor nerve palsy
Oculomotor nerve palsy or third nerve palsy is an eye condition resulting from damage to the third cranial nerve or a branch thereof. As the name suggests, the oculomotor nerve supplies the majority of the muscles controlling eye movements. Thus, damage to this nerve will result in the affected individual being unable to move his or her eye normally. In addition, the nerve also supplies the upper eyelid muscle (Levator palpebrae superioris) and the muscles responsible for pupil constriction (sphincter pupillae) . The limitations of eye movements resulting from the condition are generally so severe that the affected individual is unable to maintain normal alignment of their eyes when looking straight ahead, leading to strabismus and, as a consequence, double vision (diplopia).
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Eye nerves diagram
ICD-10-CM Alphabetical Index References for 'H49.0 - Third [oculomotor] nerve palsy'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code H49.0. Click on any term below to browse the alphabetical index.