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H10.10

H10.10Acute atopic conjunctivitis, unspecified eye

Billable / specific codeICD-10-CMunspecified

H10.10 is a billable, specific ICD-10-CM code for acute atopic conjunctivitis, unspecified eye. It is valid for submission on a claim.

Risk adjustment

H10.10 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

H10.10 is named in 8 Medicare coverage policies 8 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A59971Billing and Coding: Allergen Immunotherapy (AIT) with Subcutaneous Immunotherapy (SCIT)
  • A59973Billing and Coding: Allergen Immunotherapy (AIT) with Subcutaneous Immunotherapy (SCIT)
  • A59975Billing and Coding: Allergen Immunotherapy (AIT) with Subcutaneous Immunotherapy (SCIT)
  • A59976Billing and Coding: Allergen Immunotherapy (AIT) with Subcutaneous Immunotherapy (SCIT)

Related codes at this level

Codes that share H10.1. If H10.10 is not quite right, the correct code is usually one of these.

Questions about H10.10

Is H10.10 a billable ICD-10-CM code?
Yes. H10.10 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H10.10 sit in the tabular list?
Diseases of the eye and adnexa (H00-H59), in the block Disorders of conjunctiva (H10-H11).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.