ICD-9-CM Diagnosis Code 012.21
Diagnosis Code: 012.21 (Raw: 01221)
Description: Isolated tracheal or bronchial tuberculosis, bacteriological or histological examination not done
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 012.21 is designated for Isolated tracheal or bronchial tuberculosis, bacteriological or histological examination not done. While superseded by ICD-10 for current healthcare encounters, it remains a recognized reference code for CMS Section 111 reporting, legacy claims adjudication, and historical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.