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H44.4 ICD-10-CA code: Hypotony of eye

H44.4 is the ICD-10-CA code for “Hypotony of eye” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

H44.4

Hypotony of eye

ICD-10-CA · Canada · Also written H444

Index terms

Entries in CIHI’s alphabetical index that lead to H44.4. Searching the index by the condition the note names is how coders reach this code.

  • Flat, chamber (eye)
  • Fistula, eyeball (cornea) (sclera)
  • Obliteration, eye, anterior chamber
  • Hypotonia, hypotonicity, hypotony, eye

Notes for H44.4

As CIHI prints them, with any note H44.4 takes from the headings above it.

Includes

Excludes

Conditions classified elsewhere.

  • 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 H44.4 sits

  1. 1ChapterChapter 7: Diseases of the eye and adnexa (H00-H59)
  2. 2Block H43-H45Disorders of vitreous body and globe
  3. 3Category H44Disorders of globe
  4. 4Valid code H44.4Hypotony of eye

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.

See H44.4 in the CIHI source

Frequently asked questions

What does ICD-10-CA code H44.4 mean?

H44.4 is the ICD-10-CA code for “Hypotony of eye” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is H44.4 in ICD-10-CA?

H44.4 sits under H44 Disorders of globe, within H43-H45 Disorders of vitreous body and globe, within Chapter 7: Diseases of the eye and adnexa (H00-H59).

What coding notes apply to H44.4?

ICD-10-CA lists Includes, Excludes notes for H44.4, 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.

Codes beside H44.4

H44.0Purulent endophthalmitisH44.1Other endophthalmitisH44.2Degenerative myopiaH44.3Other degenerative disorders of globeH44.5Degenerated conditions of globeH44.6Retained (old) intraocular foreign body, magneticH44.7Retained (old) intraocular foreign body, nonmagneticH44.8Other disorders of globeH44.9Disorder of globe, unspecified