1. Home
  2. ICD-10-CM Codes List
  3. Q00-Q99
  4. Q65-Q79
  5. Other congenital malformations of skull and face bones (Q75)

Other congenital malformations of skull and face bones (Q75)

The Q75 ICD-10 codes classify various congenital malformations of the skull and face bones. These include different forms of craniosynostosis; premature fusion of skull sutures; as well as specific developmental abnormalities like craniofacial dysostosis and hypertelorism, aiding precise diagnosis and treatment.

This section covers conditions such as craniosynostosis (Q75.0), including types like sagittal (Q75.01), coronal (Q75.02), metopic (Q75.03), and lambdoid craniosynostosis (Q75.04). For example, the term acrorcephaly or simple craniosynostosis corresponds to specific codes like Q75.009, helping coders identify these unique variants. Craniofacial dysostosis (Q75.1) includes Crouzon syndrome among its synonyms, providing clarity for those seeking the exact ICD-10 code for these syndromes. The codes also include mandibulofacial dysostosis (Q75.4), known as Treacher Collins syndrome, and other conditions like hypertelorism(Q75.2) and macrocephaly (Q75.3). The grouping aids healthcare providers in documenting skull and facial bone abnormalities accurately, facilitating tailored medical care and insurance processing.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • congenital malformation of face NOS Q18
  • congenital malformation syndromes classified to Q87
  • dentofacial anomalies [including malocclusion] M26
  • musculoskeletal deformities of head and face Q67.0 Q67.4
  • skull defects associated with congenital anomalies of brain such as:
  • anencephaly Q00.0
  • encephalocele Q01
  • hydrocephalus Q03
  • microcephaly Q02

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.

Acanthosis Nigricans

A circumscribed melanosis consisting of a brown-pigmented, velvety verrucosity or fine papillomatosis appearing in the axillae and other body folds. It occurs in association with endocrine disorders, underlying malignancy, administration of certain drugs, or as in inherited disorder.

Choanal Atresia

A congenital abnormality that is characterized by a blocked CHOANAE, the opening between the nose and the NASOPHARYNX. Blockage can be unilateral or bilateral; bony or membranous.

Craniofacial Dysostosis

Autosomal dominant CRANIOSYNOSTOSIS with shallow ORBITS; EXOPHTHALMOS; and maxillary hypoplasia.

Exocrine Pancreatic Insufficiency

A malabsorption condition resulting from greater than 10% reduction in the secretion of pancreatic digestive enzymes (LIPASE; PROTEASES; and AMYLASE) by the EXOCRINE PANCREAS into the DUODENUM. This condition is often associated with CYSTIC FIBROSIS and with chronic PANCREATITIS.

Facial Asymmetry

Congenital or acquired asymmetry of the face.

Hypertelorism

Abnormal increase in the interorbital distance due to overdevelopment of the lesser wings of the sphenoid.

Mandibulofacial Dysostosis

A hereditary disorder occurring in two forms: the complete form (Franceschetti's syndrome) is characterized by a slant of the palpebral fissures, COLOBOMA of the lower lid, MICROGNATHIA and hypoplasia of the ZYGOMATIC ARCHES, and CONGENITAL MICROTIA. It is transmitted as an autosomal trait. The incomplete form (Treacher Collins syndrome) is characterized by the same anomalies in less pronounced degree. It occurs sporadically, but an autosomal dominant mode of transmission is suspected. (Dorland, 27th ed)

Osteopetrosis

Excessive formation of dense trabecular bone leading to pathological fractures; OSTEITIS; SPLENOMEGALY with infarct; ANEMIA; and extramedullary hemopoiesis (HEMATOPOIESIS, EXTRAMEDULLARY).

Osteosclerosis

An abnormal hardening or increased density of bone tissue.

Platybasia

A developmental deformity of the occipital bone and upper end of the cervical spine, in which the latter appears to have pushed the floor of the occipital bone upward. (Dorland, 27th ed)