SNOMED_CT

SNOMED CT Concept 128221000: Osteoradionecrosis of bone of skull

128221000 is a SNOMED CT concept used to represent Osteoradionecrosis of bone of skull in structured clinical data. You may see this concept in clinical documentation systems, problem lists, terminology services, interoperability records, or semantic mapping workflows. SNOMED CT is a clinical terminology used to capture healthcare meaning in a standardized, interoperable form. This concept is typed as a disorder in the terminology hierarchy.

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

SNOMED CT is a clinical terminology used to capture healthcare meaning in a standardized, interoperable form. This concept is typed as a disorder in the terminology hierarchy.

When is it used?

  • Used to represent a standardized clinical concept in health records, terminology services, and semantic mappings.
  • Often linked to diagnoses, findings, procedures, body structures, organisms, substances, or observable entities depending on the concept type.
  • Semantic tag: disorder

What it does not mean

  • A terminology concept label alone does not replace clinical interpretation, diagnosis context, or treatment advice.

Key facts

Semantic tagDisorder
Definition statusFully defined
Definition patternEquivalent
OWL axioms1
Defining attributes3
Role groups1
Module900000000000207008
Parents4
Children7

Defining attributes

Associated morphologyRadiation injury with avascular necrosis(morphologic abnormality)
Causative agentIonizing radiation(physical force)
Finding siteBone structure of cranium(body structure)

Where you may see this code

You may see this concept in clinical documentation systems, problem lists, terminology services, interoperability records, or semantic mapping workflows.

Common synonyms

Avascular necrosis of bone of skull caused by ionising radiationAseptic necrosis of bone of skull caused by ionising radiationAvascular necrosis of bone of skull caused by ionizing radiationAseptic necrosis of bone of skull caused by ionizing radiation

Frequently asked questions

Code details

Code128221000
SystemSNOMED_CT
Display nameOsteoradionecrosis of bone of skull
DescriptionAvascular necrosis of bone of skull caused by ionizing radiation (disorder)

Flags

BillableNo
Valid clinical useNo

Source

SourceSNOMED CT
Version20260501T120000Z
Releasesnapshot

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from SNOMED CT. 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.