ICD-9-CM 758.7 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 758.7 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
A common sex chromosomal anomaly in males characterized mainly by small testes with tubular hyalinization, azospermia with infertility, slight breast enlargement, elevated urinary gonadotropins, and decreased urinary 17-ketosteroids. Dull mentality has been noted. The affected individuals appear normal after birth, except for small testes. Most characteristic features become evident at adolescence as hypogonadism, gynecomastia, incomplete virilization with variable eunuchoidism, and dull mentality. Without testosterone therapy, most adult patients may become obese. Occasional abnormalities may include cryptorchidism, hypospadias, ataxia, scoliosis during adolescence, and diabetes mellitus in adulthood
A form of male hypogonadism, characterized by the presence of an extra x chromosome, small testes, seminiferous tubule dysgenesis, elevated levels of gonadotropins, low serum testosterone, underdeveloped secondary sex characteristics, and male infertility (infertility, male). Patients tend to have long legs and a slim, tall stature. Gynecomastia is present in many of the patients. The classic form has the karyotype 47,xxy. Several karyotype variants include 48,xxyy; 48,xxxy; 49,xxxxy, and mosaic patterns ( 46,xy/47,xxy; 47,xxy/48,xxxy, etc.)
A genetic disorder in males caused by having one or more extra x chromosomes. Males with this disorder may have larger than normal breasts, a lack of facial and body hair, a rounded body type, and small testicles. They may learn to speak much later than other children and may have difficulty learning to read and write. Klinefelter syndrome increases the risk of developing extragonadal germ cell tumors and breast cancer
A sex chromosome disorder caused by the presence of an extra x chromosome in the male karyotype. Affected individuals are infertile and have a small penis and testes. They tend to have tall stature and long legs and may have difficulties with speech and language development. Gynecomastia may be present
Genetic disease that produces sterile males with small testes lacking sperm due to xxy karyotype
Klinefelter's syndrome is a condition that occurs in men who have an extra x chromosome in most of their cells. The syndrome can affect different stages of physical, language and social development. The most common symptom is infertility. Because they often don't make as much of the male hormone testosterone as other boys, teenagers with klinefelter's syndrome may have less facial and body hair and may be less muscular than other boys. They may have trouble using language to express themselves. They may be shy and have trouble fitting in.it is important to start treatment as early as possible. With treatment, most boys grow up to have normal sex lives, successful careers and normal social relationships.treatments include
educational services
physical, speech and occupational therapy
medical treatments including testosterone replacement
nih: national institute of child health and human development
2015 ICD-9-CM Diagnosis Code 758.7 
Klinefelter's 758.7
XXY 758.7
