Q74.1
BillableCongenital malformation of knee
Congenital malformation of knee
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Congenital absence of patella
- Congenital dislocation of patella
- Congenital genu valgum
- Congenital genu varum
- Rudimentary patella
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Related Codes(5)
Q74.0Oth congen malform of upper limb(s), inc shoulder girdle
Q74.2Oth congen malform of lower limb(s), including pelvic girdle
Q74.3Arthrogryposis multiplex congenita
Q74.8Other specified congenital malformations of limb(s)
Q74.9Unspecified congenital malformation of limb(s)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(231)
SNOMED CT
- Congenital absence of patella6688006
- Agenesis of iris69278003
- Aniridia69278003
- Aplasia of iris69278003
- Congenital absence of iris69278003
- Congenital aniridia69278003
- Irideraemia69278003
- Irideremia69278003
- Congenital bow leg79168008
- Congenital bowed limb79168008
- Congenital bowleg79168008
- Congenital genu varum79168008
- Congenital varus deformity of knee79168008
- Bifid patella79214007
- Bipartite kneecap79214007
- Bipartite patella79214007
- Congenital genu valgum89689008
- Congenital knock-knee89689008
- Congenital valgus deformity of knee89689008
- Failure of tooth eruption109542004
- Congenital dislocation of patella205067002
- Triphalangeal thumb205308004
- Genu valgus299330008
- Knee joint valgus deformity299330008
- Knock-kneed299330008
- Knock-knees299330008
- Bandy legged299331007
- Bow legged299331007
- Bow legs299331007
- Genu varus299331007
- Knee joint varus deformity299331007
- Absent patella309244002
- Congenital dysplasia of patella389276005
- Patella dysplasia389276005
- Scypho-patellar dysplasia389277001
- Genitopatellar syndrome702367005
- Ear, patella, short stature syndrome703508009
- Meier-Gorlin syndrome703508009
- Microtia, absent patellae, micrognathia syndrome703508009
- Aniridia and absent patella syndrome720467005
- Coxopodopatellar syndrome720752007
- Ischiopatellar dysplasia720752007
- Scott Taor syndrome720752007
- Small patella syndrome720752007
- Non-eruption of teeth, maxillary hypoplasia, genu valgum syndrome723442008
- Stoelinga de Koomen Davis syndrome723442008
- Congenital hypoplasia of patella724071009
- Rudimentary patella724071009
- Say Field Coldwell syndrome733456002
- Triphalangeal thumb and dislocation of patella syndrome733456002
- Aplasia of patella737219008
- Patellar aplasia737219008
- Hyperphalangy763535005
- Supernumerary phalanx763535005
- Bilateral congenital knee dislocation840481003
- Congenital dislocation of bilateral knees840481003
- Congenital dislocation of both knees840481003
- Congenital anomaly of patella890399008
- Bilateral congenital patella dislocation890411009
- Congenital dislocation of bilateral patellas890411009
- Congenital dislocation of both patellas890411009
- Congenital dysplasia of joint of knee1297353008
- Congenital dysplasia of joint of right knee1297354002
- Congenital dysplasia of joint of left knee1297355001
- Dislocation of joint of knee due to congenital dysplasia of joint of knee1297358004
- Blepharophimosis, intellectual disability syndrome/genitopatellar overlap syndrome1304113005
- Bilateral disorder of patellofemoral joints15632371000119104
- Disorder of bilateral patellofemoral joints15632371000119104
- Disorder of both patellofemoral joints15632371000119104
- Congenital deformity of bilateral knee joints15668881000119102
- Congenital deformity of both knee joints15668881000119102
- Congenital deformity of left knee joint15668961000119104
- Congenital deformity of right knee joint15668841000119107
- Congenital dislocation of left knee15670801000119104
- Congenital dislocation of left patella15670681000119108
- Congenital dislocation of right knee15670841000119102
- Congenital dislocation of right patella15670641000119103
- Congenital genu valgum of bilateral knees15670601000119100
- Congenital genu valgum of left knee15670521000119105
- Congenital genu valgum of right knee15670561000119100
- Congenital genu varum of bilateral knees15670881000119107
- Congenital genu varum of both knees15670881000119107
- Congenital genu varum of left knee1078361000119103
- Congenital varus deformity of left knee1078361000119103
- Congenital genu varum of right knee1078371000119109
- Congenital varus deformity of right knee1078371000119109
- Dislocation of joint of left knee due to congenital dysplasia of joint of left knee15727001000119100
- Dislocation of joint of right knee due to congenital dysplasia of joint of right knee15727041000119103
UMLS
- Absence of patellaC0265667
- Congenital absence of patellaC0265667
- Congenital absence of patella (disorder)C0265667
- Congenital bow legC0152432
- Congenital bowed limbC0152432
- Congenital bowing of long bones of legC0152432
- Congenital bowing of long bones of leg, unspecifiedC0152432
- Congenital bowing of unspecified long bones of legC0152432
- Congenital bowlegC0152432
- Congenital genu varumC0152432
- Congenital genu varum (disorder)C0152432
- Congenital varus deformity of kneeC0152432
- Genu varum congenitalC0152432
- Leg bowingC0152432
- Congenital deformity of kneeC0158767
- Congenital deformity of knee (joint)C0158767
- Congenital deformity of knee jointC0158767
- Congenital deformity of knee joint (disorder)C0158767
- Congenital knee deformityC0158767
- Congenital knee deformity NOSC0158767
- Congenital knee joint deformityC0158767
- Congenital malformation of kneeC0158767
- Congenital dislocation of patellaC0345360
- Congenital dislocation of patella (disorder)C0345360
- Congenital dislocation of the patellaC0345360
- Congenital patellar dislocationC0345360
- Congenital genu valgumC0265668
- Congenital genu valgum (disorder)C0265668
- Congenital knock-kneeC0265668
- Congenital valgus deformity of kneeC0265668
- Genu valgum congenitalC0265668
- Congenital hypoplasia of patellaC4510307
- Congenital hypoplasia of patella (disorder)C4510307
- Rudimentary patellaC4510307
Clinical Terms
- Congenital hypoplasia of patella (disorder)
- Meier-Gorlin syndrome
- Congenital deformity of knee joint
- Congenital genu varum of both knees
- Congenital bowing of long bones of leg, unspecified
- Genu valgus
- Bipartite kneecap
- Say Field Coldwell syndrome
- Bow legs
- Bilateral congenital knee dislocation
- Congenital knee deformity
- Congenital dislocation of right knee
- Knee joint valgus deformity
- Knock-kneed
- Congenital dislocation of the patella
- Genitopatellar syndrome
- Absent patella
- Aniridia
- Congenital absence of iris
- Congenital genu valgum of right knee
- Congenital bowleg
- Congenital genu valgum of bilateral knees
- Small patella syndrome
- Congenital aniridia
- Congenital deformity of knee joint (disorder)
- Congenital absence of patella
- Congenital knee joint deformity
- Congenital deformity of both knee joints
- Agenesis of iris
- Dislocation of joint of left knee due to congenital dysplasia of joint of left knee
- Knock-knees
- Non-eruption of teeth, maxillary hypoplasia, genu valgum syndrome
- Congenital anomaly of patella
- Congenital dislocation of left knee
- Congenital bowing of long bones of leg
- Bilateral disorder of patellofemoral joints
- Congenital dysplasia of joint of right knee
- Patellar aplasia
- Rudimentary patella
- Absence of patella
- Congenital genu valgum of left knee
- Congenital dysplasia of patella
- Aniridia and absent patella syndrome
- Congenital varus deformity of left knee
- Bipartite patella
- Ischiopatellar dysplasia
- Congenital varus deformity of knee
- Irideraemia
- Triphalangeal thumb and dislocation of patella syndrome
- Hyperphalangy
- Bifid patella
- Patella dysplasia
- Congenital dislocation of bilateral patellas
- Congenital deformity of left knee joint
- Congenital dislocation of both patellas
- Failure of tooth eruption
- Congenital knee deformity NOS
- Congenital dislocation of bilateral knees
- Congenital dysplasia of joint of knee
- Congenital patellar dislocation
- Bow legged
- Congenital genu varum (disorder)
- Ear, patella, short stature syndrome
- Congenital knock-knee
- Stoelinga de Koomen Davis syndrome
- Congenital valgus deformity of knee
- Bilateral congenital patella dislocation
- Congenital bowed limb
- Congenital dislocation of right patella
- Congenital genu valgum (disorder)
- Congenital genu valgum
- Triphalangeal thumb
- Aplasia of iris
- Congenital genu varum of left knee
- Congenital genu varum
- Congenital bowing of unspecified long bones of leg
- Congenital bow leg
- Congenital deformity of right knee joint
- Genu varum congenital
- Congenital absence of patella (disorder)
- Irideremia
- Scypho-patellar dysplasia
- Congenital deformity of bilateral knee joints
- Blepharophimosis, intellectual disability syndrome/genitopatellar overlap syndrome
- Genu varus
- Bandy legged
- Congenital deformity of knee
- Congenital dislocation of left patella
- Coxopodopatellar syndrome
- Genu valgum congenital
- Knee joint varus deformity
- Congenital dislocation of both knees
- Congenital dislocation of patella (disorder)
- Congenital dislocation of patella
- Aplasia of patella
- Congenital dysplasia of joint of left knee
- Congenital hypoplasia of patella
- Congenital genu varum of bilateral knees
- Disorder of bilateral patellofemoral joints
- Congenital genu varum of right knee
- Supernumerary phalanx
- Congenital varus deformity of right knee
- Congenital deformity of knee (joint)
- Leg bowing
- Dislocation of joint of knee due to congenital dysplasia of joint of knee
- Microtia, absent patellae, micrognathia syndrome
- Dislocation of joint of right knee due to congenital dysplasia of joint of right knee
- Scott Taor syndrome
- Disorder of both patellofemoral joints
Frequently Asked Questions
What is the ICD-10 code for congenital malformation of knee?
The ICD-10-CM code for congenital malformation of knee is Q74.1. The full clinical description is "Congenital malformation of knee". Q74.1 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code Q74.1 mean?
ICD-10-CM code Q74.1 represents “Congenital malformation of knee”. It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a billable/specific code that can be used on a claim.
Is Q74.1 a billable code?
Yes, Q74.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is Q74.1 in?
Q74.1 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).
What codes cannot be used with Q74.1?
Q74.1 has Excludes1 notes indicating codes that cannot be used together with it, including: polydactyly (Q69.-); reduction defect of limb (Q71-Q73); syndactyly (Q70.-); and 3 more.
What SNOMED CT codes does Q74.1 map to?
Q74.1 maps to 46 SNOMED CT concepts: 309244002, 69278003, 720467005, 737219008, 299331007, and 41 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for Q74.1?
Q74.1 is linked to 6 UMLS Concept Unique Identifiers: C0265667, C0152432, C0158767, C0345360, C0265668, and 1 more. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does Q74.1 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like congenital malformation of knee affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of Q74.1?
Q74.1 maps to the ICD-11 code: LB9Z (Structural developmental anomalies of the skeleton, unspecified).
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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.