H46.3
Toxic optic neuropathy
BillableComplete code, valid to report
H46.3 (also written H463) is a billable ICD-10-CM diagnosis code for toxic optic neuropathy. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 12 codes in category H46 (Optic neuritis). The Alphabetic Index lists it under 1 entry. Its coding notes include a Code first instruction and 13 Excludes2 entries.
Code first
If the underlying condition listed here is present and known, sequence it first.
This code
- (T51-T65) to identify cause
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Inherited from H46 Optic neuritis
Also from chapter/block level (11 notes)
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
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 1 entry