Q77.9 ICD-10-CA code: Osteochondrodysplasia with defects of growth of tubular bones and spine, unspecified
Q77.9 is the ICD-10-CA code for “Osteochondrodysplasia with defects of growth of tubular bones and spine, unspecified” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
Q77.9Osteochondrodysplasia with defects of growth of tubular bones and spine, unspecified
Short description: Ostchondysplas dfct grth bone spine NOS
ICD-10-CA · Canada · Also written Q779
Index terms
Entries in CIHI’s alphabetical index that lead to Q77.9. Searching the index by the condition the note names is how coders reach this code.
- Osteochondrodysplasia, with defects of growth of tubular bones and spine
Notes for Q77.9
As CIHI prints them, with any note Q77.9 takes from the headings above it.
Excludes
Conditions classified elsewhere.
- Mucopolysaccharidosis (E76.0-E76.3)From Q77 Osteochondrodysplasia with defects of growth of tubular bones and spine
- Inborn errors of metabolism (E70-E90)From Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Where Q77.9 sits
- 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- 2Block Q65-Q79Congenital malformations and deformations of the musculoskeletal system
- 3Category Q77Osteochondrodysplasia with defects of growth of tubular bones and spine
- 4Valid code Q77.9Osteochondrodysplasia with defects of growth of tubular bones and spine, unspecified
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 Q77.9 mean?
Q77.9 is the ICD-10-CA code for “Osteochondrodysplasia with defects of growth of tubular bones and spine, unspecified” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is Q77.9 in ICD-10-CA?
Q77.9 sits under Q77 Osteochondrodysplasia with defects of growth of tubular bones and spine, 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 Q77.9?
ICD-10-CA lists Excludes notes for Q77.9, 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.