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Diagnosis Code


Code Information

Diagnosis Code: H55.01

Short Description: Congenital nystagmus

Long Description: Congenital nystagmus

The code H55.01 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)
        • H55.01 Congenital nystagmus

Code Version: 2022 ICD-10-CM


  • 2q partial trisomy syndrome
  • Acquired esotropia
  • Acquired esotropia
  • Autosomal recessive cerebellar ataxia, pyramidal signs, nystagmus, oculomotor apraxia syndrome
  • Congenital nystagmus
  • Congenital nystagmus
  • Congenital nystagmus with sensory abnormality
  • Congenital nystagmus without sensory abnormality
  • Epiphyseal dysplasia, microcephalus, nystagmus syndrome
  • Esotropia with nystagmus
  • Esotropia with nystagmus block
  • Infantile esotropia
  • Infantile esotropia
  • Partial trisomy of chromosome 2
  • Pendular nystagmus
  • Syndactyly, nystagmus syndrome due to 2q31.1 microduplication

Diagnostic Related Group(s)

The code H55.01 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Other Disorders Of The Eye With Mcc (124)
  • Other Disorders Of The Eye Without Mcc (125)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
H55.01 Right Arrow 379.51 Congenital nystagmus

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
H55.00 Unspecified 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: 10/1/2022