H49
Paralytic strabismus
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
H49 is a non-billable ICD-10-CM code category for paralytic strabismus. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are H49.0 Third [oculomotor] nerve palsy, H49.1 Fourth [trochlear] nerve palsy, H49.2 Sixth [abducent] nerve palsy, H49.3 Total (external) ophthalmoplegia and 3 more. Its coding notes include 15 Excludes2 entries.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
This code
Also from chapter/block level (12 notes)
Inherited from H49–H52 Disorders of ocular muscles, binocular movement, accommodation and refraction
- nystagmus and other irregular eye movements (H55)
Inherited from Chapter 7 Diseases of the eye and adnexa
- 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)
Notes
Also from chapter/block level (1 note)
Inherited from Chapter 7 Diseases of the eye and adnexa
- Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition