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ICD-10-CM 2027 diagnosis code

H57.05Tonic pupil

Not billable — use a more specific code

H57.05 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About H57.05

H57.05 is the ICD-10-CM diagnosis code for Tonic pupil. It belongs to category H57 (other disorders of eye and adnexa), block H55-H57 (other disorders of eye and adnexa) and chapter 7 (diseases of the eye and adnexa). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within H57.0 (anomalies of pupillary function), H57.05 is specifically for Tonic pupil. Related codes cover unspecified anomaly of pupillary function (H57.00), Argyll Robertson pupil, atypical (H57.01), Anisocoria (H57.02), Miosis (H57.03), Mydriasis (H57.04) and other anomalies of pupillary function (H57.09).

To report this condition, pick the subcode that matches the documentation: H57.051 (right eye), H57.052 (left eye), H57.053 (bilateral) and H57.059 (unspecified eye).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under H57.05

Notes that apply from higher levels

Instructions written at a parent level also apply to H57.05.

Broader instructions also apply from Chapter 7: Diseases of the eye and adnexa.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to H57.05.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about H57.05

Is H57.05 billable?

No. H57.05 is a header code. Report one of its more specific subcodes instead.