Chapter XVII

Congenital malformations, deformations and chromosomal abnormalities

Congenital malformations and deformations of the musculoskeletal system

Q65 Congenital deformities of hip
Excludes: clicking hip ( R29.4 )
Q65.0 Congenital dislocation of hip, unilateral
Q65.1 Congenital dislocation of hip, bilateral
Q65.2 Congenital dislocation of hip, unspecified
Q65.3 Congenital subluxation of hip, unilateral
Q65.4 Congenital subluxation of hip, bilateral
Q65.5 Congenital subluxation of hip, unspecified
Q65.6 Unstable hip
Dislocatable hip
Subluxatable hip
Q65.8 Other congenital deformities of hip
Anteversion of femoral neck
Congenital acetabular dysplasia
Congenital coxa:
· valga
· vara
Q65.9 Congenital deformity of hip, unspecified

Q66 Congenital deformities of feet
Excludes: reduction defects of feet ( Q72.- )
valgus deformities (acquired) ( M21.0 )
varus deformities (acquired) ( M21.1 )
Q66.0 Talipes equinovarus
Q66.1 Talipes calcaneovarus
Q66.2 Metatarsus varus
Q66.3 Other congenital varus deformities of feet
Hallux varus, congenital
Q66.4 Talipes calcaneovalgus
Q66.5 Congenital pes planus
Flat foot:
· congenital
· rigid
· spastic (everted)
Q66.6 Other congenital valgus deformities of feet
Metatarsus valgus
Q66.7 Pes cavus
Q66.8 Other congenital deformities of feet
Clubfoot NOS
Hammer toe, congenital
· asymmetric
Tarsal coalition
Vertical talus
Q66.9 Congenital deformity of feet, unspecified

Q67 Congenital musculoskeletal deformities of head, face, spine and chest
Excludes: congenital malformation syndromes classified to Q87.-
Potter's syndrome ( Q60.6)
Q67.0 Facial asymmetry
Q67.1 Compression facies
Q67.2 Dolichocephaly
Q67.3 Plagiocephaly
Q67.4 Other congenital deformities of skull, face and jaw
Excludes: dentofacial anomalies [including malocclusion] ( K07.-)
syphilitic saddle nose ( A50.5)
#Q67.40 Hemifacial atrophy
#Q67.41 Hemifacial hypertrophy
#Q67.48 Other specified congenital deformities of skull, face and jaw
Depressions in skull
Deviation of nasal septum, congenital
Squashed or bent nose, congenital
#Q67.49 Congenital deformity of skull, face and jaw, unspecified
Q67.5 Congenital deformity of spine
Congenital scoliosis:
· postural
Excludes: infantile idiopathic scoliosis ( M41.0)
scoliosis due to congenital bony malformation ( Q76.3)
Q67.6 Pectus excavatum
Congenital funnel chest
Q67.7 Pectus carinatum
Congenital pigeon chest
Q67.8 Other congenital deformities of chest
Congenital deformity of chest wall NOS

Q68 Other congenital musculoskeletal deformities
Excludes: reduction defects of limb(s) ( Q71-Q73)
Q68.0 Congenital deformity of sternocleidomastoid muscle
Congenital (sternomastoid) torticollis
Contracture of sternocleidomastoid (muscle)
Sternomastoid tumour (congenital)
Q68.1 Congenital deformity of hand
# Camptodactyly
Congenital clubfinger
Spade-like hand (congenital)
Q68.2 Congenital deformity of knee
· dislocation of knee
· genu recurvatum
Q68.3 Congenital bowing of femur
Excludes: anteversion of femur (neck) ( Q65.8)
Q68.4 Congenital bowing of tibia and fibula
Q68.5 Congenital bowing of long bones of leg, unspecified
Q68.8 Other specified congenital musculoskeletal deformities
#Q68.80 Congenital deformity of clavicle
#Q68.81 Congenital deformity of elbow
#Q68.82 Congenital deformity of forearm
#Q68.83 Congenital deformity of scapula
#Q68.84 Congenital dislocation of elbow
#Q68.85 Congenital dislocation of shoulder
#Q68.88 Other specified congenital musculoskeletal deformities

Q69 Polydactyly
Q69.0 Accessory finger(s)
Q69.1 Accessory thumb(s)
Q69.2 Accessory toe(s)
Accessory hallux
Q69.9 Polydactyly, unspecified
Supernumerary digit(s) NOS

Q70 Syndactyly
Q70.0 Fused fingers
Complex syndactyly of fingers with synostosis
Q70.1 Webbed fingers
Simple syndactyly of fingers without synostosis
Q70.2 Fused toes
Complex syndactyly of toes with synostosis
Q70.3 Webbed toes
Simple syndactyly of toes without synostosis
Q70.4 Polysyndactyly
Q70.9 Syndactyly, unspecified
Symphalangy NOS

Q71 Reduction defects of upper limb
Q71.0 Congenital complete absence of upper limb(s)
Q71.1 Congenital absence of upper arm and forearm with hand present
Q71.2 Congenital absence of both forearm and hand
Q71.3 Congenital absence of hand and finger(s)
#Q71.30 Congenital absence of hand
#Q71.31 Congenital absence of finger(s)
#Q71.32 Congenital absence of thumb
#Q71.33 Congenital hypoplastic thumb
#Q71.38 Other congenital absence of hand and finger(s)
Q71.4 Longitudinal reduction defect of radius
Clubhand (congenital)
Radial clubhand
Q71.5 Longitudinal reduction defect of ulna
Q71.6 Lobster-claw hand
Q71.8 Other reduction defects of upper limb(s)
Congenital shortening of upper limb(s)
Q71.9 Reduction defect of upper limb, unspecified

Q72 Reduction defects of lower limb
Q72.0 Congenital complete absence of lower limb(s)
Q72.1 Congenital absence of thigh and lower leg with foot present
Q72.2 Congenital absence of both lower leg and foot
Q72.3 Congenital absence of foot and toe(s)
#Q72.30 Congenital absence of foot
#Q72.31 Congenital absence of toe(s)
Q72.4 Longitudinal reduction defect of femur
Proximal femoral focal deficiency
Q72.5 Longitudinal reduction defect of tibia
Q72.6 Longitudinal reduction defect of fibula
Q72.7 Split foot
Q72.8 Other reduction defects of lower limb(s)
Congenital shortening of lower limb(s)
Q72.9 Reduction defect of lower limb, unspecified

Q73 Reduction defects of unspecified limb
Q73.0 Congenital absence of unspecified limb(s)
Amelia NOS
Q73.1 Phocomelia, unspecified limb(s)
Phocomelia NOS
Q73.8 Other reduction defects of unspecified limb(s)
Longitudinal reduction deformity of unspecified limb(s)
Ectromelia NOS
Hemimelia NOS
Reduction defect
of limb(s) NOS

Q74 Other congenital malformations of limb(s)
Excludes: polydactyly ( Q69.- )
reduction defect of limb ( Q71-Q73 )
syndactyly ( Q70.- )
Q74.0 Other congenital malformations of upper limb(s), including shoulder girdle
Accessory carpal bones
Cleidocranial dysostosis
Congenital pseudarthrosis of clavicle
Macrodactylia (fingers)
Madelung's deformity
Radioulnar synostosis
Sprengel's deformity
Triphalangeal thumb
Q74.1 Congenital malformation of knee
· absence of patella
· dislocation of patella
· genu:
  · valgum
  · varum
Rudimentary patella
Excludes: congenital:
· dislocation of knee ( Q68.2 )
· genu recurvatum ( Q68.2 )
nail patella syndrome ( Q87.2 )
Q74.2 Other congenital malformations of lower limb(s), including pelvic girdle
· fusion of sacroiliac joint
· malformation (of):
  · ankle (joint)
  · sacroiliac (joint)
Excludes: anteversion of femur (neck) ( Q65.8 )
Q74.3 Arthrogryposis multiplex congenita
Q74.8 Other specified congenital malformations of limb(s)
Q74.9 Unspecified congenital malformation of limb(s)
Congenital anomaly of limb(s) NOS

Q75 Other congenital malformations of skull and face bones
Excludes: congenital malformation of face NOS ( Q18.-)
congenital malformation syndromes classified to Q87.-
dentofacial anomalies [including malocclusion] ( K07.-)
musculoskeletal deformities of head and face ( Q67.0-Q67.4)
skull defects associated with congenital anomalies of brain such as:
· anencephaly ( Q00.0)
· encephalocele ( Q01.-)
· hydrocephalus ( Q03.-)
· microcephaly ( Q02)
Q75.0 Craniosynostosis
#Q75.00 Acrocephaly
#Q75.01 Imperfect fusion of skull
#Q75.02 Oxycephaly
#Q75.03 Trigonocephaly
#Q75.09 Craniosynostosis, unspecified
Q75.1 Craniofacial dysostosis
Crouzon's disease
Q75.2 Hypertelorism
Q75.3 Macrocephaly
Q75.4 Mandibulofacial dysostosis
· Franceschetti
· Treacher-Collins
Q75.5 Oculomandibular dysostosis
Q75.8 Other specified congenital malformations of skull and face bones
Absence of skull bone, congenital
Congenital deformity of forehead
Q75.9 Congenital malformation of skull and face bones, unspecified
Congenital anomaly of:
· face bones NOS
· skull NOS

Q76 Congenital malformations of spine and bony thorax
Excludes: congenital musculoskeletal deformities of spine and chest ( Q67.5-Q67.8)
Q76.0 Spina bifida occulta
Excludes: meningocele (spinal) ( Q05.-)
spina bifida (aperta)(cystica) ( Q05.-)
Q76.1 Klippel-Feil syndrome
Cervical fusion syndrome
Q76.2 Congenital spondylolisthesis
Congenital spondylolysis
Excludes: spondylolisthesis (acquired) ( M43.1)
spondylolysis (acquired) ( M43.0)
#Q76.20 Congenital spondylolishesis
#Q76.21 Congenital spondylolysis
Q76.3 Congenital scoliosis due to congenital bony malformation
Hemivertebra fusion or failure of segmentation with scoliosis
Q76.4 Other congenital malformations of spine, not associated with scoliosis
· absence of vertebra
· fusion of spine
· kyphosis
· lordosis
· malformation of lumbosacral (joint) (region)
Malformation of spine
Supernumerary vertebra
unspecified or not associated with scoliosis
Q76.5 Cervical rib
Supernumerary rib in cervical region
Q76.6 Other congenital malformations of ribs
Accessory rib
· absence of rib
· fusion of ribs
· malformation of ribs NOS
Excludes: short rib syndrome ( Q77.2)
Q76.7 Congenital malformation of sternum
Congenital absence of sternum
Sternum bifidum
Q76.8 Other congenital malformations of bony thorax
Q76.9 Congenital malformation of bony thorax, unspecified

Q77 Osteochondrodysplasia with defects of growth of tubular bones and spine
Excludes: mucopolysaccharidosis ( E76.0-E76.3 )
Q77.0 Achondrogenesis
Q77.1 Thanatophoric short stature
Q77.2 Short rib syndrome
Asphyxiating thoracic dysplasia [Jeune]
Q77.3 Chondrodysplasia punctata
Q77.4 Achondroplasia
Osteosclerosis congenita
Q77.5 Dystrophic dysplasia
Q77.6 Chondroectodermal dysplasia
Ellis-van Creveld syndrome
Q77.7 Spondyloepiphyseal dysplasia
Q77.8 Other osteochondrodysplasia with defects of growth of tubular bones and spine
Q77.9 Osteochondrodysplasia with defects of growth of tubular bones and spine, unspecified

Q78 Other osteochondrodysplasias
Q78.0 Osteogenesis imperfecta
Fragilitas ossium
Q78.1 Polyostotic fibrous dysplasia
Albright(-McCune)(-Sternberg) syndrome
Q78.2 Osteopetrosis
Albers-Schönberg syndrome
Q78.3 Progressive diaphyseal dysplasia
Camurati-Engelmann syndrome
Q78.4 Enchondromatosis
Maffucci's syndrome
Ollier's disease
Q78.5 Metaphyseal dysplasia
Pyle's syndrome
Q78.6 Multiple congenital exostoses
Diaphyseal aclasis
Q78.8 Other specified osteochondrodysplasias
Q78.9 Osteochondrodysplasia, unspecified
Chondrodystrophy NOS
Osteodystrophy NOS

Q79 Congenital malformations of the musculoskeletal system, not elsewhere classified
Excludes: congenital (sternomastoid) torticollis ( Q68.0 )
Q79.0 Congenital diaphragmatic hernia
Excludes: congenital hiatus hernia ( Q40.1 )
Q79.1 Other congenital malformations of diaphragm
Absence of diaphragm
Congenital malformation of diaphragm NOS
Eventration of diaphragm
Q79.2 Exomphalos
Excludes: umbilical hernia ( K42.- )
Q79.3 Gastroschisis
Q79.4 Prune belly syndrome
Q79.5 Other congenital malformations of abdominal wall
Excludes: umbilical hernia ( K42.- )
Q79.6 Ehlers-Danlos syndrome
Q79.8 Other congenital malformations of musculoskeletal system
Absence of:
· muscle
· tendon
Accessory muscle
Amyotrophia congenita
· constricting bands
· shortening of tendon
Poland's syndrome
Q79.9 Congenital malformation of musculoskeletal system, unspecified
· anomaly NOS
· deformity NOS
of musculoskeletal system NOS