FB81.Z
Osteonecrosis, unspecified
Osteonecrosis, unspecified
ICD-10 Equivalents(3)
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(13)
SNOMED CT ↗
- Acute aseptic necrosis of bone84775005
- Aseptic necrosis of bone of jaw1231151009
- Aseptic necrosis of bone of elbow region1335747008
- Aseptic necrosis of bilateral humeri16032631000119102
- Aseptic necrosis of bone of bilateral elbow regions16032431000119100
- Aseptic necrosis of bone of left ankle region309471000119100
- Aseptic necrosis of bone of left elbow region16032711000119100
- Aseptic necrosis of bone of left foot309521000119102
- Aseptic necrosis of bone of right ankle region309281000119101
- Aseptic necrosis of bone of right elbow region16032751000119104
Frequently Asked Questions
What is the ICD-11 code for osteonecrosis, unspecified?
The ICD-11 code for osteonecrosis, unspecified is FB81.Z. The full clinical description is "Osteonecrosis, unspecified".
What does ICD-11 code FB81.Z mean?
ICD-11 code FB81.Z represents “Osteonecrosis, unspecified”. It is classified under Chapter 15: Diseases of the Musculoskeletal System or Connective Tissue.
What chapter is FB81.Z in?
FB81.Z is in Chapter 15: Diseases of the Musculoskeletal System or Connective Tissue (codes FA00-FC0Z).
What is the ICD-10 equivalent of ICD-11 code FB81.Z?
FB81.Z maps to 3 ICD-10 codes: M87 (Osteonecrosis), M87.8 (Other osteonecrosis), M87.9 (Osteonecrosis, unspecified). ICD-10 and ICD-11 do not always have one-to-one mappings — check the mapping type (equivalent, approximate, narrower, or broader) for each result.
What is the difference between ICD-10 and ICD-11?
ICD-11 is the latest revision of the WHO's International Classification of Diseases, succeeding ICD-10. Key differences include: a fully digital-first design, new chapters for sleep-wake disorders, sexual health, and traditional medicine, improved coding for rare diseases, and better integration with electronic health records through extension codes.
What SNOMED CT codes does FB81.Z map to?
FB81.Z maps to 10 SNOMED CT concepts: 84775005, 16032631000119102, 16032431000119100, 1335747008, 1231151009, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code FB81.Z?
FB81.Z is linked to 3 UMLS Concept Unique Identifiers: C0027543, C0029445, C0477688. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.