Symptoms, signs, and ill-defined conditions (780-799) ICD-9-CM
The 780-799 chapter covered symptoms, signs, and ill-defined conditions with 372 legacy diagnosis codes across 3 sections. No ICD-9-CM code has been valid for claim submission since October 1, 2015; each section below leads to the codes and their ICD-10-CM replacements.
Retired Code Set
ICD-9-CM stopped being valid for U.S. claims with dates of service on or after October 1, 2015, when ICD-10-CM replaced it. Use this index for historical lookups and crosswalking; for current coding, start from the ICD-10-CM codes list or the ICD-9 / ICD-10 converter.
Sections in This Chapter 3 sections · 372 codes
| Range | Section | Codes |
|---|---|---|
| 780.01-789.9 | Symptoms | 225 |
| 790.01-796.9 | Nonspecific abnormal findings | 121 |
| 797-799.9 | Ill-defined and unknown causes of morbidity and mortality | 26 |
The info icon previews what each row contains.
Questions About This Page
How many codes are in the 780-799 chapter?
The 780-799 chapter contains 372 legacy diagnosis codes across 3 sections in the final ICD-9-CM release.
Can I still use these codes on claims?
No. ICD-9-CM was retired on October 1, 2015. To code symptoms, signs, and ill-defined conditions today, use the current ICD-10-CM codes: every legacy code page in this range links its official replacement, and the ICD-9 / ICD-10 converter translates codes in both directions.
Related References
Source: final CMS ICD-9-CM release (version date October 1, 2014). Retired from U.S. claims after September 30, 2015.
