ICD-10 Code for Hypoplasia

The ICD-10-CM 2027 alphabetic index lists hypoplasia, hypoplastic with the subterms below. More specific codes depend on the details documented, as listed in the official index (96 codes, 95 billable).

Index entries for Hypoplasia

adrenal (gland) – Q89.1
alimentary tract, congenital – Q45.8
- upper – Q40.8
anus, anal (canal) – Q42.3
- with fistula – Q42.2
aorta, aortic – Q25.42
- ascending, in hypoplastic left heart syndrome – Q23.4
- valve – Q23.1
  - in hypoplastic left heart syndrome – Q23.4
areola, congenital – Q83.8
arm (congenital) – see Defect, reduction, upper limb
artery (peripheral) – Q27.8
- brain (congenital) – Q28.3
- coronary – Q24.5
- digestive system – Q27.8
- lower limb – Q27.8
- pulmonary – Q25.79
  - functional, unilateral – J43.0
- retinal (congenital) – Q14.1
- specified site NEC – Q27.8
- umbilical – Q27.0
- upper limb – Q27.8
auditory canal – Q17.8
- causing impairment of hearing – Q16.9
biliary duct or passage – Q44.5
bone NOS – Q79.9
- face – Q75.8
- marrow – D61.9
  - megakaryocytic – D69.49
- skull – see Hypoplasia, skull
brain – Q02
- gyri – Q04.3
- part of – Q04.3
breast (areola) – N64.82
bronchus – Q32.4
cardiac – Q24.8
carpus – see Defect, reduction, upper limb, specified type NEC
cartilage hair – Q78.8
cecum – Q42.8
cementum – K00.4
cephalic – Q02
cerebellum – Q04.3
cervix (uteri) – Q51.821
clavicle (congenital) – Q74.0
coccyx – Q76.49
colon – Q42.9
- specified NEC – Q42.8
corpus callosum – Q04.0
cricoid cartilage – Q31.2
digestive organ (s) – Q45.8
- upper (congenital) – Q40.8
ear (auricle) (lobe) – Q17.2
- middle – Q16.4
enamel of teeth (neonatal) (postnatal) (prenatal) – K00.4
endocrine (gland) – Q89.2
endometrium – N85.8
epididymis (congenital) – Q55.4
epiglottis – Q31.2
erythroid, congenital – D61.01
esophagus (congenital) – Q39.8
eustachian tube – Q17.8
eye – Q11.2
eyelid (congenital) – Q10.3
face – Q18.8
- bone (s) – Q75.8
femur (congenital) – see Defect, reduction, lower limb, specified type NEC
fibula (congenital) – see Defect, reduction, lower limb, specified type NEC
finger (congenital) – see Defect, reduction, upper limb, specified type NEC
focal dermal – Q82.8
foot – see Defect, reduction, lower limb, specified type NEC
gallbladder – Q44.0
genitalia, genital organ (s)
- female, congenital – Q52.8
  - external – Q52.79
  - internal NEC – Q52.8
- in adiposogenital dystrophy – E23.6
glottis – Q31.2
hair – Q84.2
hand (congenital) – see Defect, reduction, upper limb, specified type NEC
heart – Q24.8
humerus (congenital) – see Defect, reduction, upper limb, specified type NEC
intestine (small) – Q41.9
- large – Q42.9
  - specified NEC – Q42.8
jaw – M26.09
- alveolar – M26.79
- lower – M26.04
  - alveolar – M26.74
- upper – M26.02
  - alveolar – M26.73
kidney (s) – Q60.5
- bilateral – Q60.4
- unilateral – Q60.3
labium (majus) (minus) – Q52.79
larynx – Q31.2
left heart syndrome – Q23.4
leg (congenital) – see Defect, reduction, lower limb
limb – Q73.8
- lower (congenital) – see Defect, reduction, lower limb
- upper (congenital) – see Defect, reduction, upper limb
liver – Q44.79
lung (lobe) (not associated with short gestation) – Q33.6
- associated with immaturity, low birth weight, prematurity, or short gestation – P28.0
mammary (areola) – Q83.8
mandible, mandibular – M26.04
- alveolar – M26.74
- unilateral condylar – M27.8
maxillary – M26.02
- alveolar – M26.73
medullary – D61.9
megakaryocytic – D69.49
metacarpus – see Defect, reduction, upper limb, specified type NEC
metatarsus – see Defect, reduction, lower limb, specified type NEC
muscle – Q79.8
nail (s) – Q84.6
nose, nasal – Q30.1
optic nerve – H47.03- (header)
osseous meatus (ear) – Q17.8
ovary, congenital – Q50.39
pancreas – Q45.0
parathyroid (gland) – Q89.2
parotid gland – Q38.4
patella – Q74.1
pelvis, pelvic girdle – Q74.2
penis (congenital) – Q55.62
peripheral vascular system – Q27.8
- digestive system – Q27.8
- lower limb – Q27.8
- specified site NEC – Q27.8
- upper limb – Q27.8
pituitary (gland) (congenital) – Q89.2
pulmonary (not associated with short gestation) – Q33.6
- artery, functional – J43.0
- associated with short gestation – P28.0
radioulnar – see Defect, reduction, upper limb, specified type NEC
radius – see Defect, reduction, upper limb
rectum – Q42.1
- with fistula – Q42.0
respiratory system NEC – Q34.8
rib – Q76.6
right heart syndrome – Q22.6
sacrum – Q76.49
scapula – Q74.0
scrotum – Q55.1
shoulder girdle – Q74.0
skin – Q82.8
skull (bone) – Q75.8
- with
  - anencephaly – Q00.0
  - encephalocele – see Encephalocele
  - hydrocephalus – Q03.9
    - with spina bifida – see Spina bifida, by site, with hydrocephalus
  - microcephaly – Q02
spinal (cord) (ventral horn cell) – Q06.1
spine – Q76.49
sternum – Q76.7
tarsus – see Defect, reduction, lower limb, specified type NEC
testis – Q55.1
thymic, with immunodeficiency – D82.1
thymus (gland) – Q89.2
- with immunodeficiency – D82.1
thyroid (gland) – E03.1
- cartilage – Q31.2
tibiofibular (congenital) – see Defect, reduction, lower limb, specified type NEC
toe – see Defect, reduction, lower limb, specified type NEC
tongue – Q38.3
Turner's – K00.4
ulna (congenital) – see Defect, reduction, upper limb
umbilical artery – Q27.0
unilateral condylar – M27.8
ureter – Q62.8
uterus, congenital – Q51.811
vagina – Q52.4
vascular NEC peripheral – Q27.8
- brain – Q28.3
- digestive system – Q27.8
- lower limb – Q27.8
- specified site NEC – Q27.8
- upper limb – Q27.8
vein (s) (peripheral) – Q27.8
- brain – Q28.3
- digestive system – Q27.8
- great – Q26.8
- lower limb – Q27.8
- specified site NEC – Q27.8
- upper limb – Q27.8
vena cava (inferior) (superior) – Q26.8
vertebra – Q76.49
vulva, congenital – Q52.79
zonule (ciliary) – Q12.8

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.