DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

H55 Nystagmus and other irregular eye movements

  • Header · not billable

H55 is not billable. The category heads 9 billable codes in FY2027, grouped under 2 subdivisions.

Index → code

Where it sits

  1. Chapter 7 Diseases of the eye and adnexa (H00-H59)
  2. H55-H57 Other disorders of eye and adnexa (H55-H57)
  3. H55 Nystagmus and other irregular eye movements
Billable codes
9
Subdivisions
2
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
12

Codes in H55

  1. H55.0
    Nystagmus
    Header
  2. H55.00
    Unspecified nystagmus
    Billable
  3. H55.01
    Congenital nystagmus
    Billable
  4. H55.02
    Latent nystagmus
    Billable
  5. H55.03
    Visual deprivation nystagmus
    Billable
  6. H55.04
    Dissociated nystagmus
    Billable
  7. H55.09
    Other forms of nystagmus
    Billable
  8. H55.8
    Other irregular eye movements
    Header
  9. H55.81
    Deficient saccadic eye movements
    Billable
  10. H55.82
    Deficient smooth pursuit eye movements
    Billable
  11. H55.89
    Other irregular eye movements
    Billable

Sources of each column.

Instructions

Notes that also apply

Chapter 7 instructions (Notes 1, Excludes2 11): printed on the chapter 7 page.

Index entries

  • Nystagmus → H55.00
  • Nystagmuscongenital → H55.01
  • Nystagmuslatent → H55.02
  • Nystagmusvisual deprivation → H55.03
  • Nystagmusdissociated → H55.04
  • Nystagmusminers' → H55.09
  • Nystagmusspecified form NEC → H55.09
  • Irregular, irregularityeye movements → H55.89
  • Deficiency, deficienteye movementssaccadic → H55.81
  • Deficiency, deficienteye movementssmooth pursuit → H55.82
  • Irregular, irregularityeye movementsdeficientsaccadic → H55.81
  • Irregular, irregularityeye movementsdeficientsmooth → H55.82

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy