2024 ICD-10-CM Diagnosis Code S04.2
Injury of trochlear nerve
- ICD-10-CM Code:
- S04.2
- ICD-10 Code for:
- Injury of trochlear nerve
- Is Billable?
- Not Valid for Submission
- Code Navigator:
S04.2 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of injury of trochlear nerve. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.
Specific Coding Applicable to Injury of trochlear nerve
Non-specific codes like S04.2 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for injury of trochlear nerve:
S04.20 for Injury of trochlear nerve, unspecified side - NON-BILLABLE CODE
Use S04.20XA for initial encounter - BILLABLE CODE
Use S04.20XD for subsequent encounter - BILLABLE CODE
Use S04.20XS for sequela - BILLABLE CODE
S04.21 for Injury of trochlear nerve, right side - NON-BILLABLE CODE
Use S04.21XA for initial encounter - BILLABLE CODE
Use S04.21XD for subsequent encounter - BILLABLE CODE
Use S04.21XS for sequela - BILLABLE CODE
S04.22 for Injury of trochlear nerve, left side - NON-BILLABLE CODE
Use S04.22XA for initial encounter - BILLABLE CODE
Use S04.22XD for subsequent encounter - BILLABLE CODE
Use S04.22XS for sequela - BILLABLE CODE
Coding Guidelines
The appropriate 7th character is to be added to each code from block Injury of cranial nerve (S04). Use the following options for the aplicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Tabular List of Diseases and Injuries
The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.
Inclusion Terms
Inclusion TermsThese terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Injury of 4th cranial nerve
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Injury - See Also: specified injury type; - T14.90
- - nerve NEC - T14.8
- - trochlear - S04.2
- - contusion - S04.2
- - laceration - S04.2
- - specified type NEC - S04.2
- - trochlear - S04.2
- - nerve NEC - T14.8
Patient Education
Eye Movement Disorders
When you look at an object, you're using several muscles to move both eyes to focus on it. If you have a problem with the muscles, the eyes don't work properly.
There are many kinds of eye movement disorders. Two common ones are:
- Strabismus - a disorder in which the two eyes don't line up in the same direction. This results in "crossed eyes" or "walleye."
- Nystagmus - fast, uncontrollable movements of the eyes, sometimes called "dancing eyes"
Some eye movement disorders are present at birth. Others develop over time and may be associated with other problems, such as injuries. Treatments include glasses, patches, eye muscle exercises, and surgery. There is no cure for some kinds of eye movement disorders, such as most kinds of nystagmus.
[Learn More in MedlinePlus]
Code History
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.