4A007KDMeasurement of Intracranial Temperature, Via Natural or Artificial Opening

Measurement and Monitoring›Physiological Systems›Measurement
  • Billable / Specific Code
ICD-10-PCS 4A007KD
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

4A007KD is a billable ICD-10-PCS procedure code for Measurement of Intracranial Temperature, Via Natural or Artificial Opening. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation Measurement involves determining the level of a physiological or physical function at a point in time. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under ICP and other CNS monitoring (excluding EEG).

Code Identity

ICD-10-PCS Code
4A007KD
Billable Status
Yes — Valid for Submission
Code Describes
Measurement of Intracranial Temperature, Via Natural or Artificial Opening
Short Description
Measurement of Intracranial Temperature, Via Opening
Parent Code
4A0

PCS Table Breakdown

Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.

PositionDesignationValueMeaning
1Section4Measurement and Monitoring
2Body SystemAPhysiological Systems
3Operation0Measurement
4BodySystem0Central Nervous
5Approach7Via Natural or Artificial Opening
6Function/DeviceKTemperature
7QualifierDIntracranial

In the ICD-10-PCS Alphabetic Index

These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:

Nerve conduction study
Leads to this code's table
EEG (electroencephalogram)
Leads to this code's table
Electroencephalogram (EEG)
Leads to this code's table
Guidance, catheter placement, EKG
Leads to this code's table
Measurement, Central Nervous, Conductivity
Leads to this code's table
Measurement, Central Nervous, Electrical Activity
Leads to this code's table
Measurement, Central Nervous, Pressure, Intracranial
Leads to this code's table
Measurement, Central Nervous, Saturation, Intracranial
Leads to this code's table
Measurement, Central Nervous, Temperature, Intracranial
Leads to this code's table

To code guidance of the EKG catheter placement, open the FY 2027 ICD-10-PCS Alphabetic Index at Guidance, then the subterms catheter placement, EKG. The index leads to table 4A0, where the approach, Function/Device and qualifier values shown in the breakdown above complete the seven-character code 4A007KD.

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

MAM012
ICP and other CNS monitoring (excluding EEG)
Clinical domain: Measurement and Monitoring

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.

01.17
Brain temperature monitoring
Approximate match.

Code History

Replaced in the FY 2027 code set by:
  • 4A008KD — Measurement of Intracranial Temperature, Endo

Similar Procedure Codes

Questions About 4A007KD

Is 4A007KD a billable code?

Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Measurement of Intracranial Temperature, Via Natural or Artificial Opening on inpatient claims from October 1, 2026 through September 30, 2027.

What do the characters in 4A007KD mean?

The code breaks down character by character: the 1st character 4 is the Section (Measurement and Monitoring); the 2nd character A is the Body System (Physiological Systems); the 3rd character 0 is the Operation (Measurement); the 4th character 0 is the BodySystem (Central Nervous); the 5th character 7 is the Approach (Via Natural or Artificial Opening); the 6th character K is the Function/Device (Temperature); the 7th character D is the Qualifier (Intracranial).

What is the ICD-9-PCS equivalent of 4A007KD?

Under the General Equivalence Mappings, Measurement of Intracranial Temperature, Via Natural or Artificial Opening crosswalks to ICD-9-PCS 01.17 (Brain temperature monitoring). The mapping is approximate, so confirm it fits the documentation.