H10 ICD-10-CA category: Conjunctivitis
H10 isn’t a code on its own. Choose one of the 8 codes beneath it, the one the documentation supports.
Official description
H10Conjunctivitis
ICD-10-CA · Canada
Codes in H10
H10 isn’t a code on its own. Open the code that matches what the note documents.
Notes for H10
As CIHI prints them, with any note H10 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Keratoconjunctivitis (H16.2)
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 7: Diseases of the eye and adnexa (H00-H59)
Where H10 sits
- 1ChapterChapter 7: Diseases of the eye and adnexa (H00-H59)
- 2Block H10-H13Disorders of conjunctiva
- 3Category H10Conjunctivitis
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
Is H10 a valid ICD-10-CA code?
No. H10 (Conjunctivitis) is a category heading in CIHI’s ICD-10-CA FY 2026–2027 release. It holds 8 codes; record the one the documentation supports.
Where is H10 in ICD-10-CA?
H10 sits under H10-H13 Disorders of conjunctiva, within Chapter 7: Diseases of the eye and adnexa (H00-H59).
What coding notes apply to H10?
ICD-10-CA lists Excludes notes for H10, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.