Other congenital malformations of limb(s) (Q74)

The ICD-10 code Q74 covers a range of other congenital malformations of limbs, detailing specific malformations of upper limbs, knees, lower limbs, and unspecified limb defects. These codes are specifically used to classify diverse, often complex congenital conditions affecting bones, joints, and surrounding structures of the limbs and pelvic girdle.

The ICD-10 code for other congenital malformations of upper limb(s) (Q74.0) includes a broad spectrum of conditions such as bilateral humero-ulnar synostosis, congenital deformities of the scapula, radius, and ulna, polydactyly, and congenital dislocations of shoulder joints. Coders encountering terms like congenital trigger finger, Steel syndrome, or radial ray defect syndrome will find these appropriately categorized under Q74.0. Q74.1 is used for congenital malformations of the knee, covering conditions such as congenital genu varum or valgum, dislocation of patella, and congenital dysplasia of knee joints. For the lower limbs and pelvic girdle, Q74.2 applies to malformations like tibiofibular synostosis, agenesis of pelvic bones, congenital torsions, or macrodactyly of the toes. Q74.3 is dedicated to arthrogryposis multiplex congenita, a syndrome characterized by multiple joint contractures present at birth, also referenced by synonymous terms like distal arthrogryposis or inherited arthrogryposis. The section also includes Q74.8 for other specified congenital limb malformations, capturing rare syndromes and anomalies such as camptodactyly syndrome, multiple pterygium syndromes, or phocomelia. Lastly, Q74.9 addresses unspecified congenital malformations of limb(s) where precise diagnosis is unavailable but congenital anomalies exist. This classification helps medical coders link clinical terms and syndromic descriptors to the correct ICD-10 code for congenital limb malformations, facilitating accurate documentation and medical record clarity.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • polydactyly Q69
  • reduction defect of limb Q71 Q73
  • syndactyly Q70

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Acrocallosal Syndrome

Autosomal recessive syndrome characterized by hypogenesis or agenesis of CORPUS CALLOSUM. Clinical features include MENTAL RETARDATION; CRANIOFACIAL ABNORMALITIES; digital malformations, and growth retardation.

Arachnodactyly

An abnormal bone development that is characterized by extra long and slender hands and fingers, such that the clenched thumb extends beyond the ulnar side of the hand. Arachnodactyly can include feet and toes. Arachnodactyly has been associated with several gene mutations and syndromes.

Arthrogryposis

Persistent flexure or contracture of a joint.

Dentinogenesis Imperfecta

An autosomal dominant disorder of tooth development characterized by opalescent dentin resulting in discoloration of the teeth. The dentin develops poorly with low mineral content while the pulp canal is obliterated.

Hepatorenal Syndrome

Functional KIDNEY FAILURE in patients with liver disease, usually LIVER CIRRHOSIS or portal hypertension (HYPERTENSION, PORTAL), and in the absence of intrinsic renal disease or kidney abnormality. It is characterized by intense renal vasculature constriction, reduced renal blood flow, OLIGURIA, and sodium retention.

Hypertelorism

Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sphenoid.

Malignant Hyperthermia

Rapid and excessive rise of temperature accompanied by muscular rigidity following general anesthesia.

Pectus Carinatum

A developmental anomaly characterized by abnormal anterior protrusion of the STERNUM and adjacent COSTAL CARTILAGE.

Thrombocythemia, Essential

A clinical syndrome characterized by repeated spontaneous hemorrhages and a remarkable increase in the number of circulating platelets.

Thrombocytosis

Increased numbers of platelets in the peripheral blood. (Dorland, 27th ed)