ICD-10-CM
Congenital malformations, deformations and chromosomal abnormalities
Chapter 17, Q00-Q99. CDC FY2027 file dated June 16, 2026.
License: a US government work, in the public domain (Public Domain Mark 1.0).
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Categories
87 categories in this chapter. Open one, or page through every code below.
- Q00Anencephaly and similar malformations
- Q01Encephalocele
- Q02Microcephaly
- Q03Congenital hydrocephalus
- Q04Other congenital malformations of brain
- Q05Spina bifida
- Q06Other congenital malformations of spinal cord
- Q07Other congenital malformations of nervous system
- Q10Congenital malform of eyelid, lacrimal apparatus and orbit
- Q11Anophthalmos, microphthalmos and macrophthalmos
- Q12Congenital lens malformations
- Q13Congenital malformations of anterior segment of eye
- Q14Congenital malformations of posterior segment of eye
- Q15Other congenital malformations of eye
- Q16Congenital malform of ear causing impairment of hearing
- Q17Other congenital malformations of ear
- Q18Other congenital malformations of face and neck
- Q20Congenital malformations of cardiac chambers and connections
- Q21Congenital malformations of cardiac septa
- Q22Congenital malformations of pulmonary and tricuspid valves
- Q23Congenital malformations of aortic and mitral valves
- Q24Other congenital malformations of heart
- Q25Congenital malformations of great arteries
- Q26Congenital malformations of great veins
- Q27Other congenital malformations of peripheral vascular system
- Q28Other congenital malformations of circulatory system
- Q30Congenital malformations of nose
- Q31Congenital malformations of larynx
- Q32Congenital malformations of trachea and bronchus
- Q33Congenital malformations of lung
- Q34Other congenital malformations of respiratory system
- Q35Cleft palate
- Q36Cleft lip
- Q37Cleft palate with cleft lip
- Q38Other congenital malformations of tongue, mouth and pharynx
- Q39Congenital malformations of esophagus
51 more categories are in this chapter. Type a code or a term to open one.
Codes
A header groups codes and is not billed. A billable code is one you can report.
401 to 440 of 1,067
- Q51.82Other congenital malformations of cervixHeader
- Q51.820Cervical duplicationBillable
- Q51.821Hypoplasia of cervixBillable
- Q51.828Other congenital malformations of cervixBillable
- Q51.9Congenital malformation of uterus and cervix, unspecifiedBillable
- Q52Other congenital malformations of female genitaliaHeader
- Q52.0Congenital absence of vaginaBillable
- Q52.1Doubling of vaginaHeader
- Q52.10Doubling of vagina, unspecifiedBillable
- Q52.11Transverse vaginal septumBillable
- Q52.12Longitudinal vaginal septumHeader
- Q52.120Longitudinal vaginal septum, nonobstructingBillable
- Q52.121Longitudinal vaginal septum, obstructing, right sideBillable
- Q52.122Longitudinal vaginal septum, obstructing, left sideBillable
- Q52.123Longitudinal vaginal septum, microperforate, right sideBillable
- Q52.124Longitudinal vaginal septum, microperforate, left sideBillable
- Q52.129Other and unspecified longitudinal vaginal septumBillable
- Q52.2Congenital rectovaginal fistulaBillable
- Q52.3Imperforate hymenBillable
- Q52.4Other congenital malformations of vaginaBillable
- Q52.5Fusion of labiaBillable
- Q52.6Congenital malformation of clitorisBillable
- Q52.7Other and unspecified congenital malformations of vulvaHeader
- Q52.70Unspecified congenital malformations of vulvaBillable
- Q52.71Congenital absence of vulvaBillable
- Q52.79Other congenital malformations of vulvaBillable
- Q52.8Other specified congenital malformations of female genitaliaBillable
- Q52.9Congenital malformation of female genitalia, unspecifiedBillable
- Q53Undescended and ectopic testicleHeader
- Q53.0Ectopic testisHeader
- Q53.00Ectopic testis, unspecifiedBillable
- Q53.01Ectopic testis, unilateralBillable
- Q53.02Ectopic testes, bilateralBillable
- Q53.1Undescended testicle, unilateralHeader
- Q53.10Unspecified undescended testicle, unilateralBillable
- Q53.11Abdominal testis, unilateralHeader
- Q53.111Unilateral intraabdominal testisBillable
- Q53.112Unilateral inguinal testisBillable
- Q53.12Ectopic perineal testis, unilateralBillable
- Q53.13Unilateral high scrotal testisBillable