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XExtension Codes
Histopathology
Osseous and chondromatous neoplasms
Osseous and chondromatous neoplasms, malignant

XH6E77 category

Dedifferentiated chondrosarcoma

Also indexed as

Dedifferentiated chondrosarcoma

Nearby in Osseous and chondromatous neoplasms, malignant

XH1Y90Central osteosarcoma
XH3T03Chondroblastic osteosarcoma
XH23T4Fibroblastic osteosarcoma
XH29N8Fibrochondrosarcoma
XH6TL0High grade surface osteosarcoma
XH9LS2Intracortical osteosarcoma
XH9119Intraosseous well differentiated osteosarcoma
XH06W9Osteosarcoma in Paget disease of bone

PreviousXH7XB9 — Clear cell chondrosarcoma

Browse ICD-11

01Certain infectious or parasitic diseases
02Neoplasms
03Diseases of the blood or blood-forming organs
04Diseases of the immune system
05Endocrine, nutritional or metabolic diseases
06Mental, behavioural or neurodevelopmental disorders
07Sleep-wake disorders
08Diseases of the nervous system
09Diseases of the visual system
10Diseases of the ear or mastoid process
11Diseases of the circulatory system
12Diseases of the respiratory system
13Diseases of the digestive system
14Diseases of the skin
15Diseases of the musculoskeletal system or connective tissue
16Diseases of the genitourinary system
17Conditions related to sexual health
18Pregnancy, childbirth or the puerperium
19Certain conditions originating in the perinatal period
20Developmental anomalies
21Symptoms, signs or clinical findings, not elsewhere classified
22Injury, poisoning or certain other consequences of external causes
23External causes of morbidity or mortality
24Factors influencing health status or contact with health services
25Codes for special purposes
26Supplementary Chapter Traditional Medicine Conditions
VSupplementary section for functioning assessment
XExtension Codes
Temporality
Aetiology
Topology Scale Value
Anatomy and topography
Histopathology
Dimensions of injury
Dimensions of external causes
Consciousness
Substances
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Nerve sheath tumours
Neuroepitheliomatous neoplasms
Nevi and melanomas
Odontogenic tumours
Osseous and chondromatous neoplasms
Paragangliomas and glomus tumours
Soft tissue tumours and sarcomas, NOS
Specialized gonadal neoplasms
Squamous cell neoplasms
41 more
Osseous and chondromatous neoplasms, benign
Osseous and chondromatous neoplasms, malignant
Osseous and chondromatous neoplasms, uncertain whether benign or malignant
XH4EZ4Small cell osteosarcoma
XH5CL5Telangiectatic osteosarcoma
XH1XF3Osteosarcoma, NOS
XH2CD6Osteosarcoma, extraskeletal
XH7N84Low grade central osteosarcoma
XH8J23Chondrosarcoma, NOS
XH6LT5Chondrosarcoma, grade 2
XH0Y34Chondrosarcoma, grade 3
XH5FH4Juxtacortical chondrosarcoma
XH1S32Periosteal chondrosarcoma
XH6W00Chondroblastoma, malignant
XH9344Myxoid chondrosarcoma
XH8X47Mesenchymal chondrosarcoma
XH7XB9Clear cell chondrosarcoma
XH6E77Dedifferentiated chondrosarcoma
10 more

International Classification of Diseases, Eleventh Revision (ICD-11), World Health Organization (WHO) 2019/2021, https://icd.who.int/browse11. Licensed under Creative Commons Attribution-NoDerivatives 3.0 IGO (CC BY-ND 3.0 IGO).

Release 2026-01. View this entity in the official WHO ICD-11 browser.

This page reproduces WHO classification content for reference. It is not medical advice and must not be used to diagnose or treat. For coding decisions, consult the official release and your national coding guidelines.

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