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ICD-10-CM Codes
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H00-H59
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H49-H52
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H49-
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2023 ICD-10-CM Diagnosis Code H49.2
2023 ICD-10-CM Diagnosis Code H49.2
Sixth [abducent] nerve palsy
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- H49.2 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2023 edition of ICD-10-CM H49.2 became effective on October 1, 2022.
- This is the American ICD-10-CM version of H49.2 - other international versions of ICD-10 H49.2 may differ.
The following code(s) above
H49.2 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
H49.2:
- H00-H59
2023 ICD-10-CM Range H00-H59
Diseases of the eye and adnexaNote- Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition
Type 2 Excludes- 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
2023 ICD-10-CM Range H49-H52
Disorders of ocular muscles, binocular movement, accommodation and refractionType 2 Excludes- nystagmus and other irregular eye movements (H55)
- H49
ICD-10-CM Diagnosis Code H49
Paralytic strabismus
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 2 Excludes- internal ophthalmoplegia (H52.51-)
- internuclear ophthalmoplegia (H51.2-)
- progressive supranuclear ophthalmoplegia (G23.1)
- A disorder characterized by involvement of the abducens nerve (sixth cranial nerve).
- A non-neoplastic or neoplastic disorder affecting the abducens nerve (sixth cranial nerve).
- Diseases of the sixth cranial (abducens) nerve or its nucleus in the pons. The nerve may be injured along its course in the pons, intracranially as it travels along the base of the brain, in the cavernous sinus, or at the level of superior orbital fissure or orbit. Dysfunction of the nerve causes lateral rectus muscle weakness, resulting in horizontal diplopia that is maximal when the affected eye is abducted and esotropia. Common conditions associated with nerve injury include intracranial hypertension; craniocerebral trauma; ischemia; and infratentorial neoplasms.
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
Code annotations containing back-references to H49.2:
- Strabismus (congenital) (nonparalytic) H50.9
ICD-10-CM Diagnosis Code H50.9
Unspecified strabismus
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- paralytic H49.9
ICD-10-CM Diagnosis Code H49.9
Unspecified paralytic strabismus
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- abducens nerve H49.2-
- sixth nerve H49.2-
ICD-10-CM Codes Adjacent To H49.2
H49.0 Third [oculomotor] nerve palsy
H49.1 Fourth [trochlear] nerve palsy
H49.2
Sixth [abducent] nerve palsy
H49.3 Total (external) ophthalmoplegia
H49.4 Progressive external ophthalmoplegia
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
