Contusion of flank (latus) region

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2026 onwards. It has never been valid for submission on its own.

Submit one of these 3 more specific codes instead:

S30.13XA Contusion of flank (latus) region, initial encounter
S30.13XD Contusion of flank (latus) region, subsequent encounter
S30.13XS Contusion of flank (latus) region, sequela

This code requires a seventh character. See the rule below.

What has happened to this code

Every change the publisher made, from 2026 to now.

FY2026 Added to the code set Contusion of flank (latus) region

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from S30 Superficial injury of abdomen, lower back, pelvis and external genitals

Seventh character required

The appropriate 7th character is to be added to each code from category S30

Excludes2 - not included here

superficial injury of hip (S70.-)

Inherited from the S30-S39 section Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39)

Excludes2 - not included here

burns and corrosions (T20-T32)
effects of foreign body in anus and rectum (T18.5)
effects of foreign body in genitourinary tract (T19.-)
effects of foreign body in stomach, small intestine and colon (T18.2-T18.4)
frostbite (T33-T34)
insect bite or sting, venomous (T63.4)

Includes

injuries to the abdominal wall
injuries to the anus
injuries to the buttock
injuries to the external genitalia
injuries to the flank
injuries to the groin

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Contusion > flank region

Codes in the same group

Code	Description	Status
S30.11	Contusion of abdominal wall	Not billable
S30.12	Contusion of groin	Not billable
S30.1XXA	Contusion of abdominal wall, initial encounter	Retired
S30.1XXD	Contusion of abdominal wall, subsequent encounter	Retired
S30.1XXS	Contusion of abdominal wall, sequela	Retired