Q02
BillableMicrocephaly
Microcephaly
Status
Billable / Specific
Coding Notes
Includes
Conditions included under this code
- hydromicrocephaly
- micrencephalon
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- Meckel-Gruber syndrome (Q61.9)
Excludes 2
Conditions not included here, but the patient may have both
- inborn errors of metabolism (E70-E88)
Code First
The underlying condition must be sequenced before this code
- , if applicable, congenital Zika virus disease
Also Known As / Clinical Terms
SNOMED CT
- Inherited disorder of folate metabolism4702003
- Brachycephaly13649004
- Short anteroposterior diameter of skull13649004
- Short broad skull13649004
- Wide skull13649004
- Osteogenesis imperfecta, recessive perinatal lethal, with microcephaly AND cataracts15552004
- ANN - Anonychia23610003
- Anonychia23610003
- Congenital absent nails23610003
- Cornea small26098002
- Microcornea26098002
- Congenital absence of cerebral hemispheres30023002
- Hydranencephaly30023002
- Congenital cerebral porosis38353004
- Congenital porencephalia38353004
- Congenital porencephaly38353004
- Schizencephalic porencephaly38353004
- Hyperaminoaciduria42930003
- Inborn error of amino acid metabolism42930003
- Inborn error of lipoprotein metabolism43465001
- Achalasia of cardia45564002
- Achalasia of esophagus45564002
- Achalasia of oesophagus45564002
- Cardiospasm45564002
- Lack of reflex relaxation of lower esophageal sphincter45564002
- Lack of reflex relaxation of lower oesophageal sphincter45564002
- Neonatal diabetes mellitus49817004
- Psoriasiform dermatitis52230004
- Cortical blindness68574006
- Congenital big ears69056000
- Macrotia69056000
- Congenital humpback71311003
- Congenital hunchback71311003
- Congenital kyphosis71311003
- Big jaw72855002
- Congenital prognathism72855002
- Exognathia72855002
- Progenia72855002
- Prognathia72855002
- Prognathism72855002
- Athetoid cerebral palsy75019001
- Hydromicrocephaly78071008
- Mild intellectual development disorder86765009
- Mild intellectual disability86765009
- Mild mental retardation (I.Q. 50-70)86765009
- Mild mental retardation (Intelligence Quotient 50-70)86765009
- Mild mental retardation, IQ in range 50-7086765009
- Neonatal encephalopathy95628005
- Optic nerve finding106152006
- Second cranial nerve finding106152006
- Disorder of cholesterol metabolism123963007
- Severe combined immunodeficiency with low T- and B-cell numbers190997006
- Spastic quadriplegia192965001
- Spastic tetraplegia192965001
- Lethal osteogenesis imperfecta205496008
- Osteogenesis imperfecta type II205496008
- Osteogenesis imperfecta, perinatal lethal205496008
- Osteogenesis imperfecta, type II205496008
- Dyskinetic cerebral palsy230780007
- Microcephaly, normal intelligence and immunodeficiency234638009
- NBS - Nijmegen breakage syndrome234638009
- Nijmegen breakage syndrome234638009
- Seemanova syndrome II234638009
- SRNS - Steroid-resistant nephrotic syndrome236381000
- Steroid-resistant nephrotic syndrome236381000
- Steroid-unresponsive nephrotic syndrome236381000
- Disorder of cholesterol synthesis238036004
- Marfanoid physique248298009
- Secondary microcephaly253130001
- Osteodysplastic primordial dwarfism254101001
- Malabsorption of glucose267426009
- Congenital nephritis276585000
- Disorder of serine metabolism303097007
- Congenital conduction defect315027009
- Osteoplastic dysplasia389191003
- Congenital kyphoscoliosis405772002
- Fetal microcephaly431265009
- Foetal microcephaly431265009
- Permanent diabetes mellitus of infancy609565001
- Permanent neonatal diabetes mellitus609565001
- Congenital achalasia of esophagus700283004
- Congenital achalasia of oesophagus700283004
- Extrapyramidal cerebral palsy702314005
- Non-spastic cerebral palsy702314005
- Feingold syndrome702431004
- Microcephaly-mesobrachyphalangy-tracheoesophageal fistula syndrome702431004
- Microcephaly-oculo-digito-esophageal-duodenal syndrome702431004
- Microcephaly-oculo-digito-oesophageal-duodenal syndrome702431004
- Oculo-digito-esophagoduodenal syndrome702431004
- Oculo-digito-oesophagoduodenal syndrome702431004
- Amish lethal microcephaly702437000
- Amish microcephaly702437000
- Microcephaly-capillary malformation syndrome703369003
- Hirschsprung disease-intellectual disability syndrome703535000
- Hirschsprung disease-mental retardation syndrome703535000
- Mowat-Wilson syndrome703535000
- Mandibulofacial dysostosis with microcephaly711543008
- Mandibulofacial dysostosis, Guion-Almeida type711543008
- Microcephalus co-occurrent with cervical spine fusion anomaly715462003
- Microcephaly with cervical spine fusion anomaly715462003
- Microcephalus microcornea syndrome of Seemanova type715464002
- Microcephaly microcornea syndrome Seemanova type715464002
- Seemanova Lesny syndrome715464002
- Microcephalic primordial dwarfism Toriello type715482004
- Microcephalic primordial dwarfism of Toriello type715482004
- MMEP syndrome715533002
- Microcephaly, microphthalmia, ectrodactyly of lower limbs and prognathism syndrome715533002
- Syndromic microphthalmia type 8715533002
- Viljoen Smart syndrome715533002
- Colobomatous microphthalmia715771008
- Microphthalmia with colobomatous cyst715771008
- Microphthalmos co-occurrent with congenital ocular coloboma715771008
- Autosomal recessive primary microcephaly715981004
- Microcephalia vera715981004
- True microcephaly715981004
- MacDermot Winter syndrome716023007
- Prominent glabella with microcephaly and hypogenitalism syndrome716023007
- Kawashima Tsuji syndrome716112005
- Microcephaly with deafness and intellectual disability syndrome716112005
- Goldberg Shprintzen megacolon syndrome717822006
- Megacolon microcephaly syndrome717822006
- Achalasia microcephaly syndrome718573009
- Giuffre Tsukahara syndrome719162001
- Radioulnar synostosis with microcephaly and scoliosis syndrome719162001
- Tsukahara syndrome719162001
- Castro Gago Pombo Novo syndrome719377004
- Microcephalus with albinism and digital anomaly syndrome719377004
- Microcephaly with albinism and digital anomaly syndrome719377004
- Microcephalus with brachydactyly and kyphoscoliosis syndrome719378009
- Microcephaly with brachydactyly and kyphoscoliosis syndrome719378009
- Viljoen Kallis Voges syndrome719378009
- Ellis Yale Winter syndrome719379001
- Microcephalus with cardiac defect and lung malsegmentation syndrome719379001
- Microcephaly with cardiac defect and lung malsegmentation syndrome719379001
- Microcephalus cardiomyopathy syndrome719380003
- Microcephaly cardiomyopathy syndrome719380003
- Winship Viljoen Leary syndrome719380003
- Halal syndrome719394002
- Microcephalus cleft palate syndrome719394002
- Microcephaly cleft palate syndrome719394002
- Hadziselimovic syndrome719395001
- Microcephalus facio-cardio-skeletal syndrome Hadziselimovic type719395001
- Microcephaly faciocardioskeletal syndrome719395001
- Anonychia with microcephaly syndrome720494009
- Teebi Kaurah syndrome720494009
- Aphalangy and syndactyly with microcephaly syndrome720498007
- Cernunnos-XLF deficiency720853005
- NHEJ1 (non-homologous end joining factor) syndrome720853005
- Severe combined immunodeficiency due to Cernunnos protein deficiency720853005
- Severe combined immunodeficiency, microcephaly, growth retardation, sensitivity to ionising radiation syndrome720853005
- Severe combined immunodeficiency, microcephaly, growth retardation, sensitivity to ionizing radiation syndrome720853005
- Galloway Mowat syndrome721297008
- Galloway syndrome721297008
- Microcephaly, hiatus hernia, nephrotic syndrome721297008
- Nephrosis, neuronal dysmigration syndrome721297008
- Microcephaly, hypogammaglobulinaemia, abnormal immunity syndrome721903007
- Microcephaly, hypogammaglobulinemia, abnormal immunity syndrome721903007
- Say Barber Miller syndrome721903007
- Epiphyseal dysplasia, microcephalus, nystagmus syndrome721975004
- Lowry Wood syndrome721975004
- Intellectual disability, epileptic seizures, hypogonadism and hypogenitalism, microcephaly, obesity syndrome722037004
- MEHMO (mental retardation, epileptic seizures, hypogonadism and hypogenitalism, microcephaly, obesity) syndrome722037004
- MEHMO syndrome722037004
- Mental retardation, epileptic seizures, hypogonadism and hypogenitalism, microcephaly, obesity syndrome722037004
- X-linked intellectual disability, epileptic seizures, hypogonadism and hypogenitalism, microcephaly, obesity syndrome722037004
- Severe X-linked intellectual disability Gustavson type722213009
- Agammaglobulinaemia, microcephaly, craniosynostosis, severe dermatitis syndrome722281001
- Agammaglobulinemia, microcephaly, craniosynostosis, severe dermatitis syndrome722281001
- Baraitser Brett Piesowicz syndrome722390006
- Bilateral band-like calcification with polymicrogyria722390006
- Congenital intrauterine infection-like syndrome722390006
- Microcephaly, intracranial calcification, intellectual disability syndrome722390006
- Pseudo-TORCH syndrome722390006
- Congenital atrophy of optic nerve722990003
- Congenital optic atrophy722990003
- Microcephaly, seizure, intellectual disability, heart disease syndrome723304001
- Microcephalic osteodysplastic dysplasia Saul Wilson type723404002
- Microcephalic primordial dwarfism Walsh type724141003
- Microcephalic primordial dwarfism due to ZNF335 (zinc finger protein 335) deficiency724141003
- Microcephalic primordial dwarfism due to ZNF335 deficiency724141003
- Microcephalic primordial dwarfism due to zinc finger protein 335 deficiency724141003
- Microcephalic osteodysplastic primordial dwarfism Taybi Linder type725461009
- Microcephalic osteodysplastic primordial dwarfism types I and III725461009
- Taybi Linder syndrome725461009
- Primordial microcephalic dwarfism Crachami type725461009
- Battaglia Neri syndrome733031004
- Epilepsy, microcephaly, skeletal dysplasia syndrome733031004
- Microcephalus, hypergonadotropic hypogonadism, short stature syndrome733092009
- Mikati Najjar Sahli syndrome733092009
- Microcephalus, glomerulonephritis, marfanoid habitus syndrome733472005
- MLCRD (microcephaly with or without chorioretinopathy, lymphedema or intellectual disability) syndrome733604003
- MLCRD (microcephaly with or without chorioretinopathy, lymphoedema or intellectual disability) syndrome733604003
- Microcephalus, lymphedema, chorioretinopathy syndrome733604003
- Microcephalus, lymphoedema, chorioretinopathy syndrome733604003
- Cleft palate, large ears, small head syndrome763130006
- Say Barber Hobbs syndrome763130006
- Insulin resistance763325000
- Sporadic fetal brain disruption sequence763717004
- Sporadic foetal brain disruption sequence763717004
- Microcephalus, complex motor and sensory axonal neuropathy syndrome763798008
- Microcephaly, complex motor and sensory axonal neuropathy syndrome763798008
- Microcephalus, cerebellar hypoplasia, cardiac conduction defect syndrome764732004
- Microcephaly, cerebellar hypoplasia, congenital heart conduction defect syndrome764732004
- Zaki Gleeson syndrome764732004
- Bird-headed dwarfism Montreal type765758008
- Microcephalic primordial dwarfism Montreal type765758008
- Microcephaly and chromosomal instability without immunodeficiency766753005
- NBS-like (Nijmegen breakage syndrome-like) disorder766753005
- Nijmegen breakage syndrome-like disorder766753005
- RAD50 deficiency766753005
- Autosomal recessive chorioretinopathy and microcephaly syndrome770404004
- Autosomal recessive chorioretinopathy, microcephaly, intellectual disability syndrome770404004
- Alazami syndrome770564004
- Microcephalic primordial dwarfism Alazami type770564004
- Microcephalic primordial dwarfism Dauber type770565003
- Franek Bocker Kahlen syndrome770655004
- Microcephalus, brain defect, spasticity, hypernatraemia syndrome770655004
- Microcephalus, brain defect, spasticity, hypernatremia syndrome770655004
- Microcephaly, thin corpus callosum, intellectual disability syndrome770721009
- Infantile cerebral and cerebellar atrophy with postnatal progressive microcephaly770725000
- Microcephaly, short stature, intellectual disability, facial dysmorphism syndrome771074000
- Hypernatraemia771115008
- Hypernatremia771115008
- Na excess771115008
- Na overload771115008
- Sodium overload771115008
- X-linked colobomatous microphthalmia, microcephaly, intellectual disability, short stature syndrome771148008
- X-linked colobomatous microphthalmia, microcephaly, short stature, psychomotor retardation syndrome771148008
- Char Douglas Dungan syndrome771179007
- Extrasystoles, short stature, hyperpigmentation, microcephaly syndrome771179007
- MECP2-related severe neonatal encephalopathy771303004
- Severe congenital encephalopathy due to MECP2 (methyl-CpG binding protein 2) mutation771303004
- Severe congenital encephalopathy due to MECP2 mutation771303004
- Severe congenital encephalopathy due to methyl-CpG binding protein 2 mutation771303004
- Severe neonatal onset encephalopathy with microcephaly771303004
- Microcephaly, polymicrogyria, corpus callosum agenesis syndrome773305003
- Bainbridge Ropers syndrome773400009
- Severe feeding difficulties, failure to thrive, microcephaly due to ASXL transcriptional regulator 3 deficiency syndrome773400009
- Severe feeding difficulties, failure to thrive, microcephaly due to ASXL3 deficiency syndrome773400009
- CTCF-related neurodevelopmental disorder773552008
- Intellectual disability, feeding difficulties, developmental delay, microcephaly syndrome773552008
- BBIS - Beaulieu Boycott Innes syndrome773554009
- Beaulieu Boycott Innes syndrome773554009
- THO complex 6-related developmental delay, microcephaly, facial dysmorphism syndrome773554009
- THOC6-related developmental delay-microcephaly-facial dysmorphism syndrome773554009
- Porencephaly, microcephaly, bilateral congenital cataract syndrome773627004
- Hypogonadotropic hypogonadism, severe microcephaly, sensorineural deafness, dysmorphism syndrome773665006
- Hypogonadotropic hypogonadism, severe microcephaly, sensorineural hearing loss, dysmorphism syndrome773665006
- IQSEC2 (IQ motif and Sec7 domain 2) related syndromic intellectual disability774149004
- IQSEC2-related syndromic intellectual disability774149004
- Severe intellectual disability, progressive postnatal microcephaly, midline stereotypic hand movements syndrome774149004
- Autosomal dominant primary microcephaly778070003
- Diffuse cerebral and cerebellar atrophy, intractable seizures, progressive microcephaly syndrome782737003
- Primary microcephaly, mild intellectual disability, young-onset diabetes syndrome782755007
- Asparagine synthetase deficiency782757004
- Congenital microcephaly, severe encephalopathy, progressive cerebral atrophy syndrome782757004
- Primary microcephaly, epilepsy, permanent neonatal diabetes syndrome782825008
- Severe microbrachycephaly, intellectual disability, athetoid cerebral palsy syndrome783005002
- Microcephaly with simplified gyral pattern1003373003
- Microlissencephaly1003374009
- Atrophy of cerebellar vermis1144387007
- Diffuse atrophy of cerebellar structure1144426002
- Diffuse atrophy of cerebellum1144426002
- Diffuse atrophy of cerebral structure1144427006
- Diffuse atrophy of cerebrum1144427006
- Global brain atrophy1144430004
- Microcephalus1148757008
- Microcephaly1148757008
- Congenital microcephalus1148758003
- Congenital microcephaly1148758003
- Congenital microencephaly1149087003
- Microcephaly, corpus callosum and cerebellar vermis hypoplasia, facial dysmorphism, intellectual disability syndrome1167375003
- Early-onset progressive diffuse brain atrophy, microcephaly, muscle weakness, optic atrophy syndrome1172593006
- Microcephaly, congenital cataract, psoriasiform dermatitis syndrome1172683008
- SMO (sterol-C4-methyl oxidase) deficiency1172683008
- Sterol-C4-methyl oxidase deficiency1172683008
- Progressive microcephaly, seizures, cortical blindness, developmental delay syndrome1172900005
- Postnatal microcephaly, infantile hypotonia, spastic diplegia, dysarthria, intellectual disability syndrome1173998003
- Microcephalic cortical malformations, short stature due to RTTN (rotatin) deficiency1187195007
- Microcephalic cortical malformations, short stature due to RTTN deficiency1187195007
- Microcephalic cortical malformations, short stature due to rotatin deficiency1187195007
- Congenital ichthyosis, microcephalus, quadriplegia syndrome1197059004
- Congenital ichthyosis, microcephalus, tetraplegia syndrome1197059004
- X-linked microcephaly, growth retardation, prognathism, cryptorchidism syndrome1197588008
- MOPD (microcephalic osteodysplastic primordial dwarfism) type II1208348002
- Majewski osteodysplastic primordial dwarfism type II1208348002
- Microcephalic osteodysplastic primordial dwarfism type II1208348002
- Microcephalic primordial dwarfism, insulin resistance syndrome1220596009
- DNA replication fork stabilisation factor DONSON-related microcephaly, short stature, limb abnormalities spectrum1236845001
- DNA replication fork stabilization factor DONSON-related microcephaly, short stature, limb abnormalities spectrum1236845001
- DONSON-related microcephaly, short stature, limb abnormalities spectrum1236845001
- ASCT1 deficiency1237418002
- Spastic quadriplegia, thin corpus callosum, progressive postnatal microcephaly syndrome1237418002
- Spastic tetraplegia, thin corpus callosum, progressive postnatal microcephaly syndrome1237418002
- PYCR2-related microcephaly, progressive leucoencephalopathy1237421000
- PYCR2-related microcephaly, progressive leukoencephalopathy1237421000
- Pyrroline-5-carboxylate reductase 2 related microcephaly, progressive leucoencephalopathy1237421000
- Pyrroline-5-carboxylate reductase 2 related microcephaly, progressive leukoencephalopathy1237421000
- MHAC - microhydranencephaly1237462006
- NDE1-related microhydranencephaly1237462006
- nudE neurodevelopment protein 1-related microhydranencephaly1237462006
- USP18 deficiency1251449006
- Ubiquitin specific peptidase 18 deficiency1251449006
- Microcephaly, corpus callosum hypoplasia, intellectual disability, facial dysmorphism syndrome1254650002
- Microcephaly, intellectual disability, sensorineural deafness, epilepsy, abnormal muscle tone syndrome1254651003
- Microcephaly, intellectual disability, sensorineural hearing loss, epilepsy, abnormal muscle tone syndrome1254651003
- Congenital radioulnar synostosis1268409009
- Microcephaly, facial dysmorphism, ocular anomalies, multiple congenital anomalies syndrome1279889005
- MECP2 (methyl-cytosine phosphate guanine binding protein-2) disorder1296869000
- MECP2 related disorder1296869000
- Methyl-CpG (cytosine phosphate guanine) binding protein-2 disorder1296869000
- Methyl-CpG binding protein 2 related disorder1296869000
- Methyl-cytosine phosphate guanine binding protein-2 related disorder1296869000
- SET domain containing 2, histone lysine methyltransferase-related microcephaly, severe intellectual disability, multiple congenital anomalies syndrome1300119004
- SETD2 (SET domain containing 2, histone lysine methyltransferase) related microcephaly, severe intellectual disability, multiple congenital anomalies syndrome1300119004
- SETD2-related microcephaly, severe intellectual disability, multiple congenital anomalies syndrome1300119004
- MTHFS (methenyltetrahydrofolate synthetase) related developmental delay, microcephaly, short stature, epilepsy syndrome1300128003
- MTHFS-related developmental delay, microcephaly, short stature, epilepsy syndrome1300128003
- Methenyltetrahydrofolate synthetase-related developmental delay, microcephaly, short stature, epilepsy syndrome1300128003
- CIMDAG (cerebellar hypoplasia, intellectual disability, congenital microcephaly, dystonia, anaemia, growth retardation) syndrome1332508004
- CIMDAG (cerebellar hypoplasia, intellectual disability, congenital microcephaly, dystonia, anemia, growth retardation) syndrome1332508004
- CIMDAG syndrome1332508004
- Cerebellar hypoplasia, intellectual disability, congenital microcephaly, dystonia, anaemia, growth retardation syndrome1332508004
- Cerebellar hypoplasia, intellectual disability, congenital microcephaly, dystonia, anemia, growth retardation syndrome1332508004
- Baralle Macken syndrome1351838008
- Intellectual disability, early-onset cataract, microcephaly syndrome1351838008
- Progressive microcephaly, seizures, cortical blindness, developmental delay syndrome with combined immunodeficiency due to diaphanous related formin 1 mutation1354858008
- Progressive microcephaly, seizures, cortical blindness, developmental delay with combined immunodeficiency due to DIAPH1 deficiency1354858008
- Progressive microcephaly, seizures, cortical blindness, developmental delay with combined immunodeficiency due to DIAPH1 mutation1354858008
- SCBMS (seizures, cortical blindness, microcephaly syndrome) with combined immunodeficiency due to DIAPH1 mutation1354858008
- Body height below reference range1363478003
- Bilateral congenital cataract of eyes346721000119108
- Congenital cataract of bilateral eyes346721000119108
- Congenital cataract of both eyes346721000119108
- Congenital hypoplasia of brain127551000119100
- Fetal malformation of central nervous system9721000119107
- Foetal malformation of central nervous system9721000119107
- Malformation of central nervous system of fetus9721000119107
- Malformation of central nervous system of foetus9721000119107
- Hereditary cerebellar atrophy431641000124107
UMLS
- HydromicrocephalyC0266460
- Hydromicrocephaly (disorder)C0266460
- hydromicrocephalyC0266460
- MicrocephalicC0025958
- MicrocephaliesC0025958
- MicrocephalusC0025958
- MicrocephalyC0025958
- MicroencephalyC0025958
- micrencephalonC0025958
- micrencephalyC0025958
- microcephaliC0025958
- microcephalicC0025958
- microcephaliesC0025958
- microcephalusC0025958
- microcephalyC0025958
- microencephalyC0025958
Frequently Asked Questions
What is the ICD-10 code for microcephaly?
The ICD-10-CM code for microcephaly is Q02. The full clinical description is "Microcephaly". Q02 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code Q02 mean?
ICD-10-CM code Q02 represents "Microcephaly". It is classified under Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities and is a billable/specific code that can be used on a claim.
Is Q02 a billable code?
Yes, Q02 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is Q02 in?
Q02 is in Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (codes Q00-Q99).
What codes cannot be used with Q02?
Q02 has Excludes1 notes indicating codes that cannot be used together with it, including: Meckel-Gruber syndrome (Q61.9).
What SNOMED CT codes does Q02 map to?
Q02 maps to 153 SNOMED CT concepts: 23610003, 1237418002, 718573009, 45564002, 722281001, and 148 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for Q02?
Q02 is linked to 2 UMLS Concept Unique Identifiers: C0266460, C0025958. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.