Chapter 17: Congenital malformations, deformations and chromosomal abnormalities

Code range Q00-Q99 - 89 categories

Category	Description	Billable codes
`Q00`	Anencephaly and similar malformations	3
`Q01`	Encephalocele	5
`Q02`	Microcephaly	1
`Q03`	Congenital hydrocephalus	4
`Q04`	Other congenital malformations of brain	9
`Q05`	Spina bifida	10
`Q06`	Other congenital malformations of spinal cord	7
`Q07`	Other congenital malformations of nervous system	6
`Q10`	Congenital malform of eyelid, lacrimal apparatus and orbit	8
`Q11`	Anophthalmos, microphthalmos and macrophthalmos	4
`Q12`	Congenital lens malformations	7
`Q13`	Congenital malformations of anterior segment of eye	9
`Q14`	Congenital malformations of posterior segment of eye	6
`Q15`	Other congenital malformations of eye	3
`Q16`	Congenital malform of ear causing impairment of hearing	7
`Q17`	Other congenital malformations of ear	8
`Q18`	Other congenital malformations of face and neck	10
`Q20`	Congenital malformations of cardiac chambers and connections	9
`Q21`	Congenital malformations of cardiac septa	17
`Q22`	Congenital malformations of pulmonary and tricuspid valves	9
`Q23`	Congenital malformations of aortic and mitral valves	9
`Q24`	Other congenital malformations of heart	9
`Q25`	Congenital malformations of great arteries	22
`Q26`	Congenital malformations of great veins	9
`Q27`	Other congenital malformations of peripheral vascular system	12
`Q28`	Other congenital malformations of circulatory system	6
`Q30`	Congenital malformations of nose	6
`Q31`	Congenital malformations of larynx	7
`Q32`	Congenital malformations of trachea and bronchus	5
`Q33`	Congenital malformations of lung	9
`Q34`	Other congenital malformations of respiratory system	4
`Q35`	Cleft palate	5
`Q36`	Cleft lip	3
`Q37`	Cleft palate with cleft lip	8
`Q38`	Other congenital malformations of tongue, mouth and pharynx	9
`Q39`	Congenital malformations of esophagus	9
`Q40`	Other congenital malformations of upper alimentary tract	6
`Q41`	Congenital absence, atresia and stenosis of small intestine	5
`Q42`	Congenital absence, atresia and stenosis of large intestine	6
`Q43`	Other congenital malformations of intestine	10
`Q44`	Congenital malform of gallbladder, bile ducts and liver	10
`Q45`	Other congenital malformations of digestive system	6
`Q50`	Congen malform of ovaries, fallopian tubes & broad ligaments	10
`Q51`	Congenital malformations of uterus and cervix	18
`Q52`	Other congenital malformations of female genitalia	19
`Q53`	Undescended and ectopic testicle	14
`Q54`	Hypospadias	7
`Q55`	Other congenital malformations of male genital organs	18
`Q56`	Indeterminate sex and pseudohermaphroditism	5
`Q60`	Renal agenesis and other reduction defects of kidney	7
`Q61`	Cystic kidney disease	11
`Q62`	Congen defects of renal pelvis and congen malform of ureter	17
`Q63`	Other congenital malformations of kidney	6
`Q64`	Other congenital malformations of urinary system	22
`Q65`	Congenital deformities of hip	15
`Q66`	Congenital deformities of feet	32
`Q67`	Congenital ms deformities of head, face, spine and chest	9
`Q68`	Other congenital musculoskeletal deformities	8
`Q69`	Polydactyly	4
`Q70`	Syndactyly	18
`Q71`	Reduction defects of upper limb	40
`Q72`	Reduction defects of lower limb	44
`Q73`	Reduction defects of unspecified limb	3
`Q74`	Other congenital malformations of limb(s)	6
`Q75`	Other congenital malformations of skull and face bones	22
`Q76`	Congenital malformations of spine and bony thorax	21
`Q77`	Osteochndrdys w defects of growth of tubular bones and spine	10
`Q78`	Other osteochondrodysplasias	9
`Q79`	Congenital malformations of musculoskeletal system, NEC	14
`Q80`	Congenital ichthyosis	7
`Q81`	Epidermolysis bullosa	5
`Q82`	Other congenital malformations of skin	9
`Q83`	Congenital malformations of breast	6
`Q84`	Other congenital malformations of integument	9
`Q85`	Phakomatoses, not elsewhere classified	11
`Q86`	Congen malform syndromes due to known exogenous causes, NEC	4
`Q87`	Oth congenital malform syndromes affecting multiple systems	21
`Q89`	Other congenital malformations, not elsewhere classified	10
`Q90`	Down syndrome	4
`Q91`	Trisomy 18 and Trisomy 13	8
`Q92`	Oth trisomies and partial trisomies of the autosomes, NEC	9
`Q93`	Monosomies and deletions from the autosomes, NEC	14
`Q95`	Balanced rearrangements and structural markers, NEC	7
`Q96`	Turner's syndrome	7
`Q97`	Oth sex chromosome abnormalities, female phenotype, NEC	6
`Q98`	Oth sex chromosome abnormalities, male phenotype, NEC	9
`Q99`	Other chromosome abnormalities, not elsewhere classified	10
`QA0`	Neurodev disord related to specific genetic patho variants	13
`QA1`	Genetic disorders associated with neoplasms, NEC	5