Q34.1Billable

Congenital cyst of mediastinum

Chapter
17. Congenital malformations, deformations and chromosomal abnormalities
Category
Q34
Effective date
October 1, 2026

Related codes in category Q34

Q34Other congenital malformations of respiratory systemQ34.0Anomaly of pleuraYesQ34.8Oth congenital malformations of respiratory systemYesQ34.9Congenital malformation of respiratory system, unspecifiedYes

Frequently asked questions

What is ICD-10 code Q34.1?

Q34.1 is an ICD-10-CM diagnosis code for Congenital cyst of mediastinum.

Is Q34.1 a billable code?

Yes. Q34.1 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is Q34.1 in?

Q34.1 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.

When did Q34.1 become effective?

Q34.1 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Q34.1?

Q34.1 belongs to category Q34, which includes 4 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.