2020 ICD-10-CM Diagnosis Code Q34.1

Congenital cyst of mediastinum

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • Q34.1 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 Q34.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of Q34.1 - other international versions of ICD-10 Q34.1 may differ.
The following code(s) above Q34.1 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 Q34.1:
  • 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
  • Q34
    ICD-10-CM Diagnosis Code Q34

    Other congenital malformations of respiratory system

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • congenital central alveolar hypoventilation syndrome (G47.35)
    Other congenital malformations of respiratory system
Approximate Synonyms
  • Cyst of mediastinum, congenital
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.
  • Q34.1 is considered exempt from POA reporting.
ICD-10-CM Q34.1 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 205 Other respiratory system diagnoses with mcc
  • 206 Other respiratory system diagnoses without mcc

Convert Q34.1 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 Q34.1:
  • Cyst (colloid) (mucous) (simple) (retention)
    • congenital NEC Q89.8
      ICD-10-CM Diagnosis Code Q89.8

      Other specified congenital malformations

        2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
      Use Additional
      • code(s) to identify all associated manifestations
      • mediastinum Q34.1
    • mediastinum, congenital Q34.1

ICD-10-CM Codes Adjacent To Q34.1
Q33.1 Accessory lobe of lung
Q33.2 Sequestration of lung
Q33.3 Agenesis of lung
Q33.4 Congenital bronchiectasis
Q33.5 Ectopic tissue in lung
Q33.6 Congenital hypoplasia and dysplasia of lung
Q33.8 Other congenital malformations of lung
Q33.9 Congenital malformation of lung, unspecified
Q34 Other congenital malformations of respiratory system
Q34.0 Anomaly of pleura
Q34.1 Congenital cyst of mediastinum
Q34.8 Other specified congenital malformations of respiratory system
Q34.9 Congenital malformation of respiratory system, unspecified
Q35 Cleft palate
Q35.1 Cleft hard palate
Q35.3 Cleft soft palate
Q35.5 Cleft hard palate with cleft soft palate
Q35.7 Cleft uvula
Q35.9 Cleft palate, unspecified
Q36 Cleft lip
Q36.0 Cleft lip, bilateral

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