2024 ICD-10-CM Diagnosis Code Q75.9

Congenital malformation of skull and face bones, unspecified

ICD-10-CM Code:
Short Description:
Congenital malformation of skull and face bones, unspecified
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Code Navigator:

Code Classification

  • Congenital malformations, deformations and chromosomal abnormalities
    • Congenital malformations and deformations of the musculoskeletal system
      • Other congenital malformations of skull and face bones

Q75.9 is a billable diagnosis code used to specify a medical diagnosis of congenital malformation of skull and face bones, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

Unspecified diagnosis codes like Q75.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Athetoid cerebral palsy
  • Autosomal dominant intellectual disability, craniofacial anomalies, cardiac defects syndrome
  • Brachycephaly
  • Cardiocranial syndrome Pfeiffer type
  • Cleft lip and palate, craniofacial dysmorphism, congenital heart defect, hearing loss syndrome
  • Congenital abnormality of skull and face bones
  • Congenital anomaly of alisphenoid bone
  • Congenital anomaly of basisphenoid bone
  • Congenital anomaly of face bones
  • Congenital anomaly of fetal head bones
  • Congenital anomaly of head
  • Congenital anomaly of skull
  • Congenital anomaly of supraoccipital bone
  • Congenital diaphragmatic hernia
  • Congenital dilatation of colon
  • Congenital malformation of sphenoid wing
  • Congenital posterolateral diaphragmatic hernia
  • Craniofacial deafness hand syndrome
  • Craniofacial dysplasia, short stature, ectodermal anomalies, intellectual disability syndrome
  • Deafness craniofacial syndrome
  • Diaphragmatic defect, limb deficiency, skull defect syndrome
  • Dyskinetic cerebral palsy
  • Haspeslagh Fryns Muelenaere syndrome
  • Hemifacial microsomia
  • Hirschsprung disease with nail hypoplasia and dysmorphism
  • Intellectual disability, autism, speech apraxia, craniofacial dysmorphism syndrome
  • Localized congenital skull defect
  • Mitochondrial DNA depletion syndrome encephalomyopathic form
  • Mitochondrial DNA depletion syndrome, encephalomyopathic form with variable craniofacial anomalies
  • Neurodevelopmental disorder, craniofacial dysmorphism, cardiac defect, skeletal anomalies syndrome
  • Non-spastic cerebral palsy
  • Oculo-auriculo-vertebral spectrum
  • Severe microbrachycephaly, intellectual disability, athetoid cerebral palsy syndrome
  • Skull congenital deformities

Clinical Classification

Clinical Category:
Musculoskeletal congenital conditions
CCSR Category Code:
Inpatient Default CCSR:
Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
Outpatient Default CCSR:
Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.

Clinical Information

  • Congenital Diaphragmatic Hernia - diaphragmatic hernia that is present at birth.

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Congenital anomaly of face bones NOS
  • Congenital anomaly of skull NOS

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Present on Admission (POA)

Q75.9 is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here.

CMS POA Indicator Options and Definitions

POA IndicatorReason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert Q75.9 to ICD-9-CM

  • ICD-9-CM Code: 756.0 - Anomal skull/face bones
    Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education

Craniofacial Abnormalities

Craniofacial is a medical term that relates to the bones of the skull and face. Craniofacial abnormalities are birth defects of the face or head. Some, like cleft lip and palate, are among the most common of all birth defects. Others are very rare. Most of them affect how a person's face or head looks. These conditions may also affect other parts of the body.

Treatment depends on the type of problem. Plastic and reconstructive surgery may help the person's appearance.

[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.


[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.