Diagnosis Code


Code Information

Diagnosis Code: H55.00

Short Description: Unspecified nystagmus

Long Description: Unspecified nystagmus

The code H55.00 is VALID for claim submission

Code Classification:

  • Diseases of the eye and adnexa (H00–H59)
    • Other disorders of eye and adnexa (H55-H57)
      • Nystagmus and other irregular eye movements (H55)
        • H55.00 Unspecified nystagmus

Code Version: 2022 ICD-10-CM


  • Acquired nystagmus
  • Essential tremor
  • Eyelid nystagmus
  • Hereditary essential tremor
  • Idiopathic nystagmus
  • Irregular nystagmus
  • Manifest nystagmus
  • Nystagmus
  • Nystagmus and other irregular eye movements
  • Nystagmus inhibited when fixation removed
  • Nystagmus present
  • Nystagmus signs
  • Nystagmus unchanged when fixation removed
  • Permanent nystagmus
  • Physiological nystagmus
  • Rotational nystagmus
  • Symptomatic nystagmus
  • Tremor, nystagmus, duodenal ulcer syndrome

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
H55.00 Right Arrow 379.50 Nystagmus NOS

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
H55 Nystagmus and other irregular eye movements
H55.0 Nystagmus
H55.01 Congenital nystagmus
H55.02 Latent nystagmus
H55.03 Visual deprivation nystagmus
H55.04 Dissociated nystagmus
H55.09 Other forms of nystagmus
H55.8 Other irregular eye movements
H55.81 Deficient saccadic eye movements
H55.82 Deficient smooth pursuit eye movements
H55.89 Other irregular eye movements

This page was last updated on: 10/1/2021