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ICD-10 Code Q78.0: Osteogenesis imperfecta

Q78.0 is a billable ICD-10 diagnosis code used to classify Osteogenesis imperfecta in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0).

When is it used?

  • May be used when a clinician documents osteogenesis imperfecta in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
17Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)
block
Q65-Q79Congenital malformations and deformations of the musculoskeletal system
category
Q78Other osteochondrodysplasias
currentQ78

Official coding notes

Inclusion terms
  • Fragilitas ossium
  • Osteopsathyrosis

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Coverage-related procedures and services

CPT 82306high
VITAMIN D; 25 HYDROXY, INCLUDES FRACTION(S), IF PERFORMED
Source: CMS coverage guidance
CPT 78351high
BONE DENSITY (BONE MINERAL CONTENT) STUDY, 1 OR MORE SITES; DUAL PHOTON ABSORPTIOMETRY, 1 OR MORE SITES
Source: CMS coverage guidance
CPT 78350high
BONE DENSITY (BONE MINERAL CONTENT) STUDY, 1 OR MORE SITES; SINGLE PHOTON ABSORPTIOMETRY
Source: CMS coverage guidance
CPT 82652high
VITAMIN D; 1, 25 DIHYDROXY, INCLUDES FRACTION(S), IF PERFORMED
Source: CMS coverage guidance
CPT 0556Thigh
BONE STRENGTH AND FRACTURE RISK USING FINITE ELEMENT ANALYSIS OF FUNCTIONAL DATA AND BONE-MINERAL DENSITY UTILIZING DATA FROM A COMPUTED TOMOGRAPHY SCAN; ASSESSMENT OF BONE STRENGTH AND FRACTURE RISK AND BONE-MINERAL DENSITY
Source: CMS coverage guidance
CPT 0557Thigh
BONE STRENGTH AND FRACTURE RISK USING FINITE ELEMENT ANALYSIS OF FUNCTIONAL DATA AND BONE-MINERAL DENSITY UTILIZING DATA FROM A COMPUTED TOMOGRAPHY SCAN; INTERPRETATION AND REPORT
Source: CMS coverage guidance

Coding guidelines

Compatibility

Legacy and official ICD code match exactly.
Legacy codes
Q78.0

Common synonyms

Osteogenesis imperfecta

Frequently asked questions

Code details

CodeQ78.0
SystemICD10
Display nameOsteogenesis imperfecta
ChapterCongenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA0)
BlockCongenital malformations and deformations of the musculoskeletal system

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Adair-Dighton syndrome(brittle bones and blue sclera, deafness)BlueBrittleDeafness(acquired) (complete) (hereditary) (partial)Deafness(acquired) (complete) (hereditary) (partial)Disease, diseasedDisease, diseasedDisease, diseasedEddowes(-Spurway)syndromeEkman's syndrome(brittle bones and blue sclera)Fragile, fragilityFragilitas

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code Q78.0 for Osteogenesis imperfecta | HealthAssure