ICD-9-CM diagnosis code (retired)
790.99 — Other nonspecific findings on examination of blood
ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.
About ICD-9-CM 790.99
790.99 is an ICD-9-CM diagnosis code for other nonspecific findings on examination of blood. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.
The CMS General Equivalence Mappings translate it to 2 ICD-10-CM codes, such as R78.89 (Finding of other specified substances, not normally found in blood) and R78.9 (Finding of unspecified substance, not normally found in blood). All of these are approximate matches, so review the record to pick the right one.
ICD-10-CM equivalents
Common questions about 790.99
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.