H10.42 - Simple chronic conjunctivitis

Version 2023
ICD-10:H10.42
Short Description:Simple chronic conjunctivitis
Long Description:Simple chronic conjunctivitis
Status: Not Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Diseases of the eye and adnexa (H00–H59)
    • Disorders of conjunctiva (H10-H11)
      • Conjunctivitis (H10)

H10.42 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of simple chronic conjunctivitis. The code is not specific and is NOT valid for the year 2023 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Clinical Information

Specific Coding for Simple chronic conjunctivitis

Non-specific codes like H10.42 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for simple chronic conjunctivitis:

  • BILLABLE CODE - Use H10.421 for Simple chronic conjunctivitis, right eye
  • BILLABLE CODE - Use H10.422 for Simple chronic conjunctivitis, left eye
  • BILLABLE CODE - Use H10.423 for Simple chronic conjunctivitis, bilateral
  • BILLABLE CODE - Use H10.429 for Simple chronic conjunctivitis, unspecified eye

Index to Diseases and Injuries References

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for this diagnosis code are found in the injuries and diseases index:

Patient Education


Pink Eye

Conjunctivitis is the medical name for pink eye. It involves inflammation of the outer layer of the eye and inside of the eyelid. It can cause swelling, itching, burning, discharge, and redness. Causes include:

Pink eye usually does not affect vision. Infectious pink eye can easily spread from one person to another. The infection will clear in most cases without medical care, but bacterial pink eye needs treatment with antibiotic eye drops or ointment.

NIH: National Eye Institute


[Learn More in MedlinePlus]

Code History