1. ICD-10-CM Codes
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2. H00-H59 Diseases of the eye and adnexa
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3. H46-H47 Disorders of optic nerve and visual pathways
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4. H47- Other disorders of optic [2nd] nerve and visual pathways
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5. 2021 ICD-10-CM Diagnosis Code H47.01

2021 ICD-10-CM Diagnosis Code H47.01

Ischemic optic neuropathy

2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code

• H47.01 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
• The 2021 edition of ICD-10-CM H47.01 became effective on October 1, 2020.
• This is the American ICD-10-CM version of H47.01 - other international versions of ICD-10 H47.01 may differ.

• Ischemic injury to the optic nerve which usually affects the optic disk (optic neuropathy, anterior ischemic) and less frequently the retrobulbar portion of the nerve (optic neuropathy, posterior ischemic). The injury results from occlusion of arterial blood supply which may result from temporal arteritis; atherosclerosis; collagen diseases; embolism; diabetes mellitus; and other conditions. The disease primarily occurs in the sixth decade or later and presents with the sudden onset of painless and usually severe monocular visual loss. Anterior ischemic optic neuropathy also features optic disk edema with microhemorrhages. The optic disk appears normal in posterior ischemic optic neuropathy. (glaser, neuro-ophthalmology, 2nd ed, p135)

• 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

• Type 2 Excludes: H46
  ICD-10-CM Diagnosis Code H46

  Optic neuritis

  2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code

  Type 2 Excludes

  • ischemic optic neuropathy (H47.01-)
  • neuromyelitis optica [Devic] (G36.0)

• Disorder (of) - see also Disease
  • nerve G58.9
    ICD-10-CM Diagnosis Code G58.9

    Mononeuropathy, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • optic NEC H47.09-
      ICD-10-CM Diagnosis Code H47.09-

      Other disorders of optic nerve, not elsewhere classified

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code

      Applicable To

      • Compression of optic nerve
      • ischemic H47.01-
• Neuropathy, neuropathic G62.9
  ICD-10-CM Diagnosis Code G62.9

  Polyneuropathy, unspecified

  2016 2017 2018 2019 2020 2021 Billable/Specific Code

  Applicable To

  • Neuropathy NOS
  • optic (nerve) - see also Neuritis, optic
    • ischemic H47.01-

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