U.S. category index · FY 2027

Y ICD-10-CM Categories: Category Index

Browse 51 top-level ICD-10-CM categories beginning with Y, then follow their complete FY 2027 child-code hierarchies.

Complete category list

Categories beginning with Y

Open a category to continue through its complete hierarchy of more specific codes.

Y00

Assault by blunt object

Y01

Assault by pushing from high place

Y02

Assault by pushing or placing victim in front of moving object

Y03

Assault by crashing of motor vehicle

Y04

Assault by bodily force

Y07

Perpetrator of assault, maltreatment and neglect

Y08

Assault by other specified means

Y09

Assault by unspecified means

Y21

Drowning and submersion, undetermined intent

Y22

Handgun discharge, undetermined intent

Y23

Rifle, shotgun and larger firearm discharge, undetermined intent

Y24

Other and unspecified firearm discharge, undetermined intent

Y25

Contact with explosive material, undetermined intent

Y26

Exposure to smoke, fire and flames, undetermined intent

Y27

Contact with steam, hot vapors and hot objects, undetermined intent

Y28

Contact with sharp object, undetermined intent

Y29

Contact with blunt object, undetermined intent

Y30

Falling, jumping or pushed from a high place, undetermined intent

Y31

Falling, lying or running before or into moving object, undetermined intent

Y32

Crashing of motor vehicle, undetermined intent

Y33

Other specified events, undetermined intent

Y35

Legal intervention

Y36

Operations of war

Y37

Military operations

Y38

Terrorism

Y62

Failure of sterile precautions during surgical and medical care

Y63

Failure in dosage during surgical and medical care

Y64

Contaminated medical or biological substances

Y65

Other misadventures during surgical and medical care

Y66

Nonadministration of surgical and medical care

Y69

Unspecified misadventure during surgical and medical care

Y70

Anesthesiology devices associated with adverse incidents

Y71

Cardiovascular devices associated with adverse incidents

Y72

Otorhinolaryngological devices associated with adverse incidents

Y73

Gastroenterology and urology devices associated with adverse incidents

Y74

General hospital and personal-use devices associated with adverse incidents

Y75

Neurological devices associated with adverse incidents

Y76

Obstetric and gynecological devices associated with adverse incidents

Y77

Ophthalmic devices associated with adverse incidents

Y78

Radiological devices associated with adverse incidents

Y79

Orthopedic devices associated with adverse incidents

Y80

Physical medicine devices associated with adverse incidents

Y81

General- and plastic-surgery devices associated with adverse incidents

Y82

Other and unspecified medical devices associated with adverse incidents

Y83

Surgical operation and other surgical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure

Y84

Other medical procedures as the cause of abnormal reaction of the patient, or of later complication, without mention of misadventure at the time of the procedure

Y90

Evidence of alcohol involvement determined by blood alcohol level

Y92

Place of occurrence of the external cause

Y93

Activity codes

Y95

Nosocomial condition

Y99

External cause status

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This category index is generated from Vero’s repository-backed ICD-10-CM hierarchy. Every listed category is a top-level record, and each linked category page exposes its direct child codes.

Review the CDC/NCHS ICD-10-CM source

Category navigation

Frequently asked questions

Which ICD-10-CM categories begin with Y?

This index lists 51 top-level categories beginning with Y from Vero’s FY 2027 U.S. ICD-10-CM reference dataset.

How do I find a more specific Y code?

Open a category below, then follow its linked child-code hierarchy until you reach the code supported by the documentation.

Which ICD-10-CM release does this Y index use?

The index uses the FY 2027 U.S. ICD-10-CM release and the repository-backed hierarchy displayed on each linked code page.

Is every Y category billable?

No. These are top-level categories used for navigation. Follow the hierarchy to a sufficiently specific code and confirm the active code set, official guidance, and payer requirements.

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