ICD-10-CM 2027
ICD-10 code for pleural folds abnormal
From the official ICD-10-CM alphabetic index entry “Abnormal, abnormality, abnormalities › pleural (folds)”. Page updated September 29, 2026.
About coding pleural folds abnormal
The ICD-10-CM code for pleural folds abnormal is Q34.0 (Anomaly of pleura).
Within Q34 (other congenital malformations of respiratory system), Q34.0 is specifically for anomaly of pleura. Related codes cover congenital cyst of mediastinum (Q34.1), other specified congenital malformations of respiratory system (Q34.8) and congenital malformation of respiratory system, unspecified (Q34.9).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 205 (Other Respiratory System Diagnoses with MCC, relative weight 1.8244) and DRG 206 (Other Respiratory System Diagnoses without MCC, relative weight 0.9257), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about pleural folds abnormal ICD-10 codes
What is the ICD-10 code for pleural folds abnormal?
- Q34.0 — Anomaly of pleura.
Is Q34.0 billable?
- Yes. Q34.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Q34.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Q34.0 as a principal diagnosis.
Is Q34.0 a CC or MCC?
- No. Q34.0 is neither a CC nor an MCC under MS-DRG v44.0.