2018/2019 ICD-10-CM Diagnosis Code H46.3

Toxic optic neuropathy

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Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • (T51-T65
    ICD-10-CM Range T51-T65

    Toxic effects of substances chiefly nonmedicinal as to source

    Note
    • When no intent is indicated code to accidental. Undetermined intent is only for use when there is specific documentation in the record that the intent of the toxic effect cannot be determined.
    Type 1 Excludes
    • contact with and (suspected) exposure to toxic substances (Z77.-)
    Use Additional
    • code(s):
    • for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70)
    • personal history of foreign body fully removed (Z87.821)
    • to identify any retained foreign body, if applicable (Z18.-)
    • T51 Toxic effect of alcohol
    • T52 Toxic effect of organic solvents
    • T53 Toxic effect of halogen derivatives of a...
    • T54 Toxic effect of corrosive substances
    • T55 Toxic effect of soaps and detergents
    • T56 Toxic effect of metals
    • T57 Toxic effect of other inorganic substanc...
    • T58 Toxic effect of carbon monoxide
    • T59 Toxic effect of other gases, fumes and v...
    • T60 Toxic effect of pesticides
    • T61 Toxic effect of noxious substances eaten...
    • T62 Toxic effect of other noxious substances...
    • T63 Toxic effect of contact with venomous an...
    • T64 Toxic effect of aflatoxin and other myco...
    • T65 Toxic effect of other and unspecified su...
    ) to identify cause
The following code(s) above H46.3 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 H46.3:
  • H00-H59
    2019 ICD-10-CM Range H00-H59

    Diseases of the eye and adnexa

    Note
    • 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)
    Diseases of the eye and adnexa
  • H46
    ICD-10-CM Diagnosis Code H46

    Optic neuritis

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • ischemic optic neuropathy (H47.01-)
    • neuromyelitis optica [Devic] (G36.0)
    Optic neuritis
Approximate Synonyms ICD-10-CM H46.3 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):

Convert H46.3 to ICD-9-CM

Code History

Diagnosis Index entries containing back-references to H46.3:

ICD-10-CM Codes Adjacent To H46.3
H46.00 …… unspecified eye
H46.01 …… right eye
H46.02 …… left eye
H46.03 …… bilateral
H46.1 Retrobulbar neuritis
H46.10 …… unspecified eye
H46.11 …… right eye
H46.12 …… left eye
H46.13 …… bilateral
H46.2 Nutritional optic neuropathy
H46.3 Toxic optic neuropathy
H46.8 Other optic neuritis
H46.9 Unspecified optic neuritis
H47 Other disorders of optic [2nd] nerve and visual pathways
H47.0 Disorders of optic nerve, not elsewhere classified
H47.01 Ischemic optic neuropathy
H47.011 …… right eye
H47.012 …… left eye
H47.013 …… bilateral
H47.019 …… unspecified eye
H47.02 Hemorrhage in optic nerve sheath

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.