2020 ICD-10-CM Diagnosis Code Q93.4

Deletion of short arm of chromosome 5

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • Q93.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM Q93.4 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of Q93.4 - other international versions of ICD-10 Q93.4 may differ.
Applicable To
  • Cri-du-chat syndrome
The following code(s) above Q93.4 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to Q93.4:
  • Q00-Q99
    2020 ICD-10-CM Range Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

    Note
    • Codes from this chapter are not for use on maternal records
    Type 2 Excludes
    • inborn errors of metabolism (E70-E88)
    Congenital malformations, deformations and chromosomal abnormalities
  • Q90-Q99
    2020 ICD-10-CM Range Q90-Q99

    Chromosomal abnormalities, not elsewhere classified

    Type 2 Excludes
    • mitochondrial metabolic disorders (E88.4-)
    Chromosomal abnormalities, not elsewhere classified
Approximate Synonyms
  • Cri du chat
  • Cri du chat syndrome
Clinical Information
  • A genetic syndrome resulting from a partial deletion on the short arm of chromosome 5. It is characterized by a cat-like cry in infancy, microcephaly, mental retardation, growth failure, round face, hypertelorism, and cardiac failure.
  • An infantile syndrome characterized by a cat-like cry, failure to thrive, microcephaly, mental retardation, spastic quadriparesis, micro- and retrognathia, glossoptosis, bilateral epicanthus, hypertelorism, and tiny external genitalia. It is caused by a deletion of the short arm of chromosome 5 (5p-).
  • Deletion of the short arm of chromosome 5 characterized by a variable clinical picture consisting of severe mental deficiency, growth retardation, multiple abnormalities and a peculiar crying sound resembling that of a suffering kitten (hence the synonym crying cat syndrome or cri du chat syndrome), that disappears within weeks or months after birth.
  • Infantile syndrome characterized by a cat-like cry, failure to thrive, microcephaly, mental retardation, spastic quadriparesis, micro- and retrognathia, glossoptosis, bilateral epicanthus, hypertelorism, and tiny external genitalia; caused by a deletion of the short arm of chromosome 5.
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • Q93.4 is considered exempt from POA reporting.
ICD-10-CM Q93.4 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 884 Organic disturbances and intellectual disability

Convert Q93.4 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to Q93.4:

ICD-10-CM Codes Adjacent To Q93.4
Q92.61 …… in normal individual
Q92.62 …… in abnormal individual
Q92.7 Triploidy and polyploidy
Q92.8 Other specified trisomies and partial trisomies of autosomes
Q92.9 Trisomy and partial trisomy of autosomes, unspecified
Q93 Monosomies and deletions from the autosomes, not elsewhere classified
Q93.0 Whole chromosome monosomy, nonmosaicism (meiotic nondisjunction)
Q93.1 Whole chromosome monosomy, mosaicism (mitotic nondisjunction)
Q93.2 Chromosome replaced with ring, dicentric or isochromosome
Q93.3 Deletion of short arm of chromosome 4
Q93.4 Deletion of short arm of chromosome 5
Q93.5 Other deletions of part of a chromosome
Q93.51 Angelman syndrome
Q93.59 Other deletions of part of a chromosome
Q93.7 Deletions with other complex rearrangements
Q93.8 Other deletions from the autosomes
Q93.81 Velo-cardio-facial syndrome
Q93.82 Williams syndrome
Q93.88 Other microdeletions
Q93.89 Other deletions from the autosomes
Q93.9 Deletion from autosomes, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.