Q78.0 ICD-10-CA code: Osteogenesis imperfecta
Q78.0 is the ICD-10-CA code for “Osteogenesis imperfecta” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
Q78.0Osteogenesis imperfecta
ICD-10-CA · Canada · Also written Q780
Index terms
Entries in CIHI’s alphabetical index that lead to Q78.0. Searching the index by the condition the note names is how coders reach this code.
- Osteitis, fragilitans
- Brittle, bones disease
- Lobstein(Ekman) syndrome
- Eddowes(Spurway) syndrome
- Osteopsathyrosis (idiopathica)
- Van der Hoeve(de Kleyn) syndrome
- Blue, sclera, with fragility of bone and deafness
- Fragilitas, ossium (with blue sclerae) (hereditary)
- Fragile, fragility, bone, congenital (with blue sclera)
- Deafness (acquired) (complete) (hereditary) (partial), with blue sclera and fragility of bone
Notes for Q78.0
As CIHI prints them, with any note Q78.0 takes from the headings above it.
Includes
- Fragilitas ossiumOsteopsathyrosis
Excludes
Conditions classified elsewhere.
- Inborn errors of metabolism (E70-E90)From Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Where Q78.0 sits
- 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- 2Block Q65-Q79Congenital malformations and deformations of the musculoskeletal system
- 3Category Q78Other osteochondrodysplasias
- 4Valid code Q78.0Osteogenesis imperfecta
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
What does ICD-10-CA code Q78.0 mean?
Q78.0 is the ICD-10-CA code for “Osteogenesis imperfecta” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is Q78.0 in ICD-10-CA?
Q78.0 sits under Q78 Other osteochondrodysplasias, within Q65-Q79 Congenital malformations and deformations of the musculoskeletal system, within Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99).
What coding notes apply to Q78.0?
ICD-10-CA lists Includes, Excludes notes for Q78.0, 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.