ICD10BillableValid for clinical use

ICD-10 Code H10.31: Unspecified acute conjunctivitis, right eye

H10.31 is a billable ICD-10 diagnosis code used to classify Unspecified acute conjunctivitis, right eye in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the eye and adnexa (H00-H59).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. 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 unspecified acute conjunctivitis, right eye in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

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.

Code hierarchy

chapter
7Diseases of the eye and adnexa (H00-H59)
block
H10-H11Disorders of conjunctiva
category
H10Conjunctivitis
category
H10.3Unspecified acute conjunctivitis
currentH10.3

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Ophthalmologist

Coverage-related procedures and services

CPT 86005high
ALLERGEN SPECIFIC IGE; QUALITATIVE, MULTIALLERGEN SCREEN (EG, DISK, SPONGE, CARD)
Source: CMS coverage guidance
CPT 86003high
ALLERGEN SPECIFIC IGE; QUANTITATIVE OR SEMIQUANTITATIVE, CRUDE ALLERGEN EXTRACT, EACH
Source: CMS coverage guidance
CPT 86008high
ALLERGEN SPECIFIC IGE; QUANTITATIVE OR SEMIQUANTITATIVE, RECOMBINANT OR PURIFIED COMPONENT, EACH
Source: CMS coverage guidance
CPT 86001high
ALLERGEN SPECIFIC IGG QUANTITATIVE OR SEMIQUANTITATIVE, EACH ALLERGEN
Source: CMS coverage guidance
CPT 95018high
ALLERGY TESTING, ANY COMBINATION OF PERCUTANEOUS (SCRATCH, PUNCTURE, PRICK) AND INTRACUTANEOUS (INTRADERMAL), SEQUENTIAL AND INCREMENTAL, WITH DRUGS OR BIOLOGICALS, IMMEDIATE TYPE REACTION, INCLUDING TEST INTERPRETATION AND REPORT, SPECIFY NUMBER OF TESTS
Source: CMS coverage guidance
CPT 95017high
ALLERGY TESTING, ANY COMBINATION OF PERCUTANEOUS (SCRATCH, PUNCTURE, PRICK) AND INTRACUTANEOUS (INTRADERMAL), SEQUENTIAL AND INCREMENTAL, WITH VENOMS, IMMEDIATE TYPE REACTION, INCLUDING TEST INTERPRETATION AND REPORT, SPECIFY NUMBER OF TESTS
Source: CMS coverage guidance

Coding guidelines

Common synonyms

Unspecified acute conjunctivitis, right eye

Frequently asked questions

Code details

CodeH10.31
SystemICD10
Display nameUnspecified acute conjunctivitis, right eye
ChapterDiseases of the eye and adnexa (H00-H59)
BlockDisorders of conjunctiva

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

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.

ICD-10 Code H10.31 for Unspecified acute conjunctivitis, right eye | HealthAssure