2023

  1. ICD-10-CM Codes
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  2. Q00-Q99
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  3. Q50-Q56
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  4. Q56-
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  5. 2023 ICD-10-CM Diagnosis Code Q56.4

2023 ICD-10-CM Diagnosis Code Q56.4

Indeterminate sex, unspecified

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
  • Q56.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2023 edition of ICD-10-CM Q56.4 became effective on October 1, 2022.
  • This is the American ICD-10-CM version of Q56.4 - other international versions of ICD-10 Q56.4 may differ.
Applicable To
  • Ambiguous genitalia
The following code(s) above Q56.4 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 Q56.4:
  • Q00-Q99
    2023 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
  • Q50-Q56
    2023 ICD-10-CM Range Q50-Q56

    Congenital malformations of genital organs

    Type 1 Excludes
    • androgen insensitivity syndrome (E34.5-)
    • syndromes associated with anomalies in the number and form of chromosomes (Q90-Q99)
    Congenital malformations of genital organs
  • Q56
    ICD-10-CM Diagnosis Code Q56

    Indeterminate sex and pseudohermaphroditism

      2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • 46,XX true hermaphrodite (Q99.1)
    • androgen insensitivity syndrome (E34.5-)
    • chimera 46,XX/46,XY true hermaphrodite (Q99.0)
    • female pseudohermaphroditism with adrenocortical disorder (E25.-)
    • pseudohermaphroditism with specified chromosomal anomaly (Q96-Q99)
    • pure gonadal dysgenesis (Q99.1)
    Indeterminate sex and pseudohermaphroditism
Approximate Synonyms
  • Ambiguous genitalia
  • Disorder of sexual differentiation
  • Sexual differentiation disorder
Clinical Information
  • A rare congenital abnormality in which the infant's external genitalia do not have the typical appearance of a male's or female's genitalia.
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.
  • Q56.4 is considered exempt from POA reporting.
ICD-10-CM Q56.4 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
  • 729 Other male reproductive system diagnoses with cc/mcc
  • 730 Other male reproductive system diagnoses without cc/mcc
  • 742 Uterine and adnexa procedures for non-malignancy with cc/mcc
  • 743 Uterine and adnexa procedures for non-malignancy without cc/mcc
  • 760 Menstrual and other female reproductive system disorders with cc/mcc
  • 761 Menstrual and other female reproductive system disorders without cc/mcc

Convert Q56.4 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
  • 2021 (effective 10/1/2020): No change
  • 2022 (effective 10/1/2021): No change
  • 2023 (effective 10/1/2022): No change

Diagnosis Index entries containing back-references to Q56.4:
  • Ambiguous genitalia Q56.4
  • Indeterminate sex Q56.4

ICD-10-CM Codes Adjacent To Q56.4
Q55.64 Hidden penis
Q55.69 Other congenital malformation of penis
Q55.7 Congenital vasocutaneous fistula
Q55.8 Other specified congenital malformations of male genital organs
Q55.9 Congenital malformation of male genital organ, unspecified
Q56 Indeterminate sex and pseudohermaphroditism
Q56.0 Hermaphroditism, not elsewhere classified
Q56.1 Male pseudohermaphroditism, not elsewhere classified
Q56.2 Female pseudohermaphroditism, not elsewhere classified
Q56.3 Pseudohermaphroditism, unspecified
Q56.4 Indeterminate sex, unspecified
Q60 Renal agenesis and other reduction defects of kidney
Q60.0 Renal agenesis, unilateral
Q60.1 Renal agenesis, bilateral
Q60.2 Renal agenesis, unspecified
Q60.3 Renal hypoplasia, unilateral
Q60.4 Renal hypoplasia, bilateral
Q60.5 Renal hypoplasia, unspecified
Q60.6 Potter's syndrome
Q61 Cystic kidney disease
Q61.0 Congenital renal cyst

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

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