D90D5ZZBeam Radiation of Nasopharynx using Neutrons
- Billable / Specific Code
D90D5ZZ is a billable ICD-10-PCS procedure code for Beam Radiation of Nasopharynx using Neutrons. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026).
Code Identity
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.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 1 | Section | D | Radiation Therapy |
| 2 | Body System | 9 | Ear, Nose, Mouth and Throat |
| 3 | Modality | 0 | Beam Radiation |
| 4 | TreatmentSite | D | Nasopharynx |
| 5 | ModalityQualifier | 5 | Neutrons |
| 6 | Isotope | Z | None |
| 7 | Qualifier | Z | None |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for D90D5ZZ under the General Equivalence Mappings.
Similar Procedure Codes
Questions About D90D5ZZ
Is D90D5ZZ a billable code?
Yes. D90D5ZZ is a complete seven-character ICD-10-PCS code, specific enough to report Beam Radiation of Nasopharynx using Neutrons on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in D90D5ZZ mean?
D90D5ZZ breaks down character by character: the 1st character D is the Section (Radiation Therapy); the 2nd character 9 is the Body System (Ear, Nose, Mouth and Throat); the 3rd character 0 is the Modality (Beam Radiation); the 4th character D is the TreatmentSite (Nasopharynx); the 5th character 5 is the ModalityQualifier (Neutrons); the 6th character Z is the Isotope (None); the 7th character Z is the Qualifier (None).
What is the ICD-9-PCS equivalent of D90D5ZZ?
Under the General Equivalence Mappings, Beam Radiation of Nasopharynx using Neutrons crosswalks to ICD-9-PCS 92.26. The mapping is approximate, so confirm it fits the documentation.
