Klippel-Feil syndrome https://rarediseases.info.nih.gov/diseases/10280/klippel-feil-syndrome https://www.malacards.org/card/isolated_klippel_feil_syndrome https://www.malacards.org/card/klippel_feil_syndrome Klippel-Feil Sequence ICD9:756.16 ICD10CM:Q76.1 MONDO:0001029 DOID:10426 cervical vertebral fusion MEDGEN:9645 NCIT:C98967 Orphanet:2345 UMLS:C0022738 A congenital, musculoskeletal condition characterized by the fusion of at least two vertebrae of the neck. Common symptoms include a short neck, low hairline at the back of the head, and restricted mobility of the upper spine. This syndrome can cause chronic headaches as well as pain in both the neck and the back.Other features may involve various other body parts or systems. Sometimes, KFS occurs as a feature of another disorder or syndrome, such as Wildervanck syndrome or hemifacial microsomia. In these cases, people have the features of both KFS and the additional disorder. KFS may be caused by mutations in the GDF6 or GDF3 gene and inherited in an autosomal dominant manner; or, it may be caused by mutations in the MEOX1 gene and inherited in an autosomal recessive manner. Treatment is symptomatic and may include medications, surgery, and/or physical therapy. GARD:0010280 icd11.foundation:2139186992 MESH:D007714 SCTID:5601008 OMIMPS:118100 Klippel Feil syndrome musculoskeletal system disorder hereditary disease obsolete_isolated Klippel-Feil syndrome