ICD-10-CM External Causes of Injury Index — R
Look up how an injury occurred. External cause codes are secondary codes; they never appear as the principal diagnosis.
93 entries. An entry marked — has no code of its own; follow "see" to the listed term. An unmarked entry without a code is a heading for the entries beneath it.
| Term | Code |
|---|---|
| Radiation (exposure to) | |
| Radiation (exposure to), arc lamps | W89.0 |
| Radiation (exposure to), atomic power plant NEC (malfunction) | W88.1 |
| Radiation (exposure to), complication of or abnormal reaction to medical radiotherapy | Y84.2 |
| Radiation (exposure to), electromagnetic, ionizing | W88.0 |
| Radiation (exposure to), gamma rays | W88.1 |
| Radiation (exposure to), in | |
| Radiation (exposure to), in, war operations (from or following nuclear explosion) — see War operations | — |
| Radiation (exposure to), inadvertent exposure of patient (receiving test or therapy) | Y63.3 |
| Radiation (exposure to), infrared (heaters and lamps) | W90.1 |
| Radiation (exposure to), infrared (heaters and lamps), excessive heat from | W92 |
| Radiation (exposure to), ionized, ionizing (particles, artificially accelerated) | |
| Radiation (exposure to), ionized, ionizing (particles, artificially accelerated), radioisotopes | W88.1 |
| Radiation (exposure to), ionized, ionizing (particles, artificially accelerated), specified NEC | W88.8 |
| Radiation (exposure to), ionized, ionizing (particles, artificially accelerated), x-rays | W88.0 |
| Radiation (exposure to), isotopes, radioactive — see Radiation, radioactive isotopes | — |
| Radiation (exposure to), laser (s) | W90.2 |
| Radiation (exposure to), laser (s), in war operations — see War operations | — |
| Radiation (exposure to), laser (s), misadventure in medical care | Y63.2 |
| Radiation (exposure to), light sources (man-made visible and ultraviolet) | W89.9 |
| Radiation (exposure to), light sources (man-made visible and ultraviolet), natural | X32 |
| Radiation (exposure to), light sources (man-made visible and ultraviolet), specified NEC | W89.8 |
| Radiation (exposure to), light sources (man-made visible and ultraviolet), tanning bed | W89.1 |
| Radiation (exposure to), light sources (man-made visible and ultraviolet), welding light | W89.0 |
| Radiation (exposure to), man-made visible light | W89.9 |
| Radiation (exposure to), man-made visible light, specified NEC | W89.8 |
| Radiation (exposure to), man-made visible light, tanning bed | W89.1 |
| Radiation (exposure to), man-made visible light, welding light | W89.0 |
| Radiation (exposure to), microwave | W90.8 |
| Radiation (exposure to), misadventure in medical or surgical procedure | Y63.2 |
| Radiation (exposure to), natural NEC | X39.08 |
| Radiation (exposure to), natural NEC, radon | X39.01 |
| Radiation (exposure to), overdose (in medical or surgical procedure) | Y63.2 |
| Radiation (exposure to), radar | W90.0 |
| Radiation (exposure to), radioactive isotopes (any) | W88.1 |
| Radiation (exposure to), radioactive isotopes (any), atomic power plant malfunction | W88.1 |
| Radiation (exposure to), radioactive isotopes (any), misadventure in medical or surgical treatment | Y63.2 |
| Radiation (exposure to), radiofrequency | W90.0 |
| Radiation (exposure to), radium NEC | W88.1 |
| Radiation (exposure to), sun | X32 |
| Radiation (exposure to), ultraviolet (light) (man-made) | W89.9 |
| Radiation (exposure to), ultraviolet (light) (man-made), natural | X32 |
| Radiation (exposure to), ultraviolet (light) (man-made), specified NEC | W89.8 |
| Radiation (exposure to), ultraviolet (light) (man-made), tanning bed | W89.1 |
| Radiation (exposure to), ultraviolet (light) (man-made), welding light | W89.0 |
| Radiation (exposure to), welding arc, torch, or light | W89.0 |
| Radiation (exposure to), welding arc, torch, or light, excessive heat from | W92 |
| Radiation (exposure to), x-rays (hard) (soft) | W88.0 |
| Range disease | W94.11 |
| Rape (attempted) (confirmed) | — |
| Rape (attempted) (confirmed), suspected | — |
| Rat bite | W53.11 |
| Reaching (prolonged) (static) | X50.1 |
| Reaction, abnormal to medical procedure — see also Complication of or following, by type of procedure | Y84.9 |
| Reaction, abnormal to medical procedure, biologicals — see Table of Drugs and Chemicals | — |
| Reaction, abnormal to medical procedure, drugs — see Table of Drugs and Chemicals | — |
| Reaction, abnormal to medical procedure, vaccine — see Table of Drugs and Chemicals | — |
| Reaction, abnormal to medical procedure, with misadventure — see Misadventure | — |
| Recoil | |
| Recoil, airgun | W34.110 |
| Recoil, BB gun | W34.110 |
| Recoil, firearm NEC | W34.19 |
| Recoil, gas, air or spring-operated gun NEC | W34.118 |
| Recoil, handgun | W32.1 |
| Recoil, hunting rifle | W33.12 |
| Recoil, larger firearm | W33.10 |
| Recoil, larger firearm, specified NEC | W33.19 |
| Recoil, machine gun | W33.13 |
| Recoil, paintball gun | W34.111 |
| Recoil, pellet | W34.110 |
| Recoil, shotgun | W33.11 |
| Recoil, Very pistol [flare] | W34.19 |
| Reduction in | |
| Reduction in, atmospheric pressure — see Air, pressure, change | — |
| Rock falling on or hitting (accidentally) (person) | W20.8 |
| Rock falling on or hitting (accidentally) (person), in cave-in | W20.0 |
| Run over (accidentally) (by) | |
| Run over (accidentally) (by), animal NEC (not being ridden) | W55.89 |
| Run over (accidentally) (by), machinery — see Contact, with, by specified type of machine | — |
| Run over (accidentally) (by), transport vehicle NEC — see also Accident, transport | V09.9 |
| Run over (accidentally) (by), transport vehicle NEC, intentional homicide (attempt) | Y03.0 |
| Run over (accidentally) (by), transport vehicle NEC, motor NEC | V09.20 |
| Run over (accidentally) (by), transport vehicle NEC, motor NEC, intentional homicide (attempt) | Y03.0 |
| Running | |
| Running off, away | |
| Running off, away, animal (being ridden) — see also Accident, transport | V80.918 |
| Running off, away, animal (being ridden), not being ridden | W55.89 |
| Running off, away, animal-drawn vehicle NEC — see also Accident, transport | V80.928 |
| Running off, away, highway, road, street (way) | |
| Running off, away, highway, road, street (way), transport vehicle NEC — see also Accident, transport | V89.9 |
| Running, before moving object | X81.8 |
| Running, before moving object, motor vehicle | X81.0 |
| Rupture pressurized devices — see Explosion, by type of device | — |
Read from: CMS/CDC ICD-10-CM release files (tabular list, order file, addenda) — FY2027. All data sources · How to read the labels
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources