ICD10
ICD-10 Code H57.0: Anomalies of pupillary function
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the eye and adnexa (H00-H59).
When is it used?
- May be used when a clinician documents anomalies of pupillary function in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
- This entry may represent a broader category rather than the most specific billable code.
Code hierarchy
chapter
7Diseases of the eye and adnexa (H00-H59)
block
H55-H57Other disorders of eye and adnexa
category
H57Other disorders of eye and adnexa
currentH57
Where you may see this code
You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.
Related specialists
Ophthalmologist
Related codes
Sibling codes
Mapped diagnoses and classifications
SNOMED_CT 274093008high
Abnormal pupil
Source: SNOMED International ICD-10 map
SNOMED_CT 386660007high
Abnormal pupil reaction
Source: SNOMED International ICD-10 map
SNOMED_CT 72124005high
Abnormal pupillary function
Source: SNOMED International ICD-10 map
SNOMED_CT 103273009high
Absence of direct light pupillary reflex
Source: SNOMED International ICD-10 map
SNOMED_CT 301947004high
Absent pupil near reaction
Source: SNOMED International ICD-10 map
SNOMED_CT 13353005high
Absent pupil reaction
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
H57.0
Replacement codes
H57.00 — Unspecified anomaly of pupillary functionH57.01 — Argyll Robertson pupil, atypicalH57.02 — AnisocoriaH57.03 — MiosisH57.04 — MydriasisH57.09 — Other anomalies of pupillary function
Common synonyms
Anomalies of pupillary function
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.