ICD-9-CM procedure code (retired)
89.14 — Electroencephalogram
About ICD-9-CM 89.14
89.14 is an ICD-9-CM procedure code for electroencephalogram. 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 16 ICD-10-PCS codes, such as 4A0034Z (Measurement of Central Nervous Electrical Activity, Percutaneous Approach), 4A0074Z (Measurement of Central Nervous Electrical Activity, Via Natural or Artificial Opening) and 4A0084Z (Measurement of Central Nervous Electrical Activity, Via Natural or Artificial Opening Endoscopic). All of these are approximate matches, so review the record to pick the right one.
ICD-10-PCS equivalents
- 4A0034ZMeasurement of Central Nervous Electrical Activity, Percutaneous Approachapproximate
- 4A0074ZMeasurement of Central Nervous Electrical Activity, Via Natural or Artificial Openingapproximate
- 4A0084ZMeasurement of Central Nervous Electrical Activity, Via Natural or Artificial Opening Endoscopicapproximate
- 4A00X4ZMeasurement of Central Nervous Electrical Activity, External Approachapproximate
- 4A0134ZMeasurement of Peripheral Nervous Electrical Activity, Percutaneous Approachapproximate
- 4A0174ZMeasurement of Peripheral Nervous Electrical Activity, Via Natural or Artificial Openingapproximate
- 4A0184ZMeasurement of Peripheral Nervous Electrical Activity, Via Natural or Artificial Opening Endoscopicapproximate
- 4A01X4ZMeasurement of Peripheral Nervous Electrical Activity, External Approachapproximate
- 4A1034ZMonitoring of Central Nervous Electrical Activity, Percutaneous Approachapproximate
- 4A1074ZMonitoring of Central Nervous Electrical Activity, Via Natural or Artificial Openingapproximate
- 4A1084ZMonitoring of Central Nervous Electrical Activity, Via Natural or Artificial Opening Endoscopicapproximate
- 4A10X4ZMonitoring of Central Nervous Electrical Activity, External Approachapproximate
- 4A1134ZMonitoring of Peripheral Nervous Electrical Activity, Percutaneous Approachapproximate
- 4A1174ZMonitoring of Peripheral Nervous Electrical Activity, Via Natural or Artificial Openingapproximate
- 4A1184ZMonitoring of Peripheral Nervous Electrical Activity, Via Natural or Artificial Opening Endoscopicapproximate
- 4A11X4ZMonitoring of Peripheral Nervous Electrical Activity, External Approachapproximate
Common questions about 89.14
What is the ICD-10 code for ICD-9 89.14?
- The GEMs map 89.14 to ICD-10-PCS 4A0034Z, 4A0074Z, 4A0084Z, 4A00X4Z, 4A0134Z, 4A0174Z and 10 more.
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.