ICD-9-CM Diagnosis Code 512.83
Diagnosis Code: 512.83 (Raw: 51283)
Description: Chronic pneumothorax
Classification: International Classification of Diseases, Ninth Revision, Clinical Modification (ICD-9-CM)
Fiscal Year: 2026 Reference
CMS Section 111 Status: Valid for reporting.
Overview & Historical Usage
ICD-9-CM code 512.83 is designated for Chronic pneumothorax. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical clinical data analysis.