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H10.413

H10.413Chronic giant papillary conjunctivitis, bilateral

Billable / specific codeICD-10-CMbilateral

H10.413 is a billable, specific ICD-10-CM code for chronic giant papillary conjunctivitis, bilateral. It is valid for submission on a claim.

Risk adjustment

H10.413 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

H10.413 is named in 16 Medicare coverage policies 16 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56538Billing and Coding: Allergen Immunotherapy
  • A56558Billing and Coding: Allergy Testing
  • A56559Billing and Coding: Allergy Skin Testing
  • A56559Billing and Coding: Allergy Skin Testing

Related codes at this level

Codes that share H10.41. If H10.413 is not quite right, the correct code is usually one of these.

Questions about H10.413

Is H10.413 a billable ICD-10-CM code?
Yes. H10.413 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does H10.413 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.