2021 ICD-10-CM Diagnosis Code Q51.9

Congenital malformation of uterus and cervix, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
  • Q51.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM Q51.9 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of Q51.9 - other international versions of ICD-10 Q51.9 may differ.
The following code(s) above Q51.9 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 Q51.9:
  • Q00-Q99
    2021 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
    2021 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
Approximate Synonyms
  • Congenital uterine anomaly
  • Inadequate development of endometrium
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.
  • Q51.9 is considered exempt from POA reporting.
ICD-10-CM Q51.9 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 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 Q51.9 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

Diagnosis Index entries containing back-references to Q51.9:
  • Anomaly, anomalous (congenital) (unspecified type) Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
  • Deformity Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
    • cervix (uterus) (acquired) N88.8
      ICD-10-CM Diagnosis Code N88.8

      Other specified noninflammatory disorders of cervix uteri

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Type 1 Excludes
      • current obstetric trauma (O71.3)
      • congenital Q51.9
    • uterus (congenital) Q51.9
  • Distortion(s) (congenital)
    • cervix Q51.9 (uteri)
    • uterus Q51.9
  • Malformation (congenital) - see also Anomaly

ICD-10-CM Codes Adjacent To Q51.9
Q51.7 Congenital fistulae between uterus and digestive and urinary tracts
Q51.8 Other congenital malformations of uterus and cervix
Q51.81 Other congenital malformations of uterus
Q51.810 Arcuate uterus
Q51.811 Hypoplasia of uterus
Q51.818 Other congenital malformations of uterus
Q51.82 Other congenital malformations of cervix
Q51.820 Cervical duplication
Q51.821 Hypoplasia of cervix
Q51.828 Other congenital malformations of cervix
Q51.9 Congenital malformation of uterus and cervix, unspecified
Q52 Other congenital malformations of female genitalia
Q52.0 Congenital absence of vagina
Q52.1 Doubling of vagina
Q52.10 …… unspecified
Q52.11 Transverse vaginal septum
Q52.12 Longitudinal vaginal septum
Q52.120 …… nonobstructing
Q52.121 …… obstructing, right side
Q52.122 …… obstructing, left side
Q52.123 …… microperforate, right side

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