ICD-9-CM procedure code (retired)
88.73 — Diagnostic ultrasound of other sites of thorax
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-PCS equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 88.73
88.73 is an ICD-9-CM procedure code for diagnostic ultrasound of other sites of thorax. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-PCS took over.
The CMS General Equivalence Mappings translate it to 6 ICD-10-PCS codes, such as B340ZZZ (Ultrasonography of Thoracic Aorta), BB4BZZZ (Ultrasonography of Pleura) and BB4CZZZ (Ultrasonography of Mediastinum). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
Common questions about 88.73
What is the ICD-10 code for ICD-9 88.73?
- The GEMs map 88.73 to ICD-10-PCS B340ZZZ, BB4BZZZ, BB4CZZZ, BH40ZZZ, BH41ZZZ and BH42ZZZ.
GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.