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ICD-10-CM 2027 diagnosis code

S37.021Major contusion of right kidney

Not billable — use a more specific codeRequires 7th character

S37.021 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S37.021

S37.021 is the ICD-10-CM diagnosis code for major contusion of right kidney. It belongs to category S37 (injury of urinary and pelvic organs), block S30-S39 (injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within S37.02 (major contusion of kidney), S37.021 is specifically for major contusion of right kidney. Related codes cover left kidney (S37.022) and unspecified kidney (S37.029).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

The appropriate 7th character is to be added to each code from category S37

Notes that apply from higher levels

Instructions written at a parent level also apply to S37.021.

› From S37.0 Injury of kidney
Excludes2
  • acute kidney injury (nontraumatic) (N17.9)
› From S37 Injury of urinary and pelvic organs
Excludes1
  • obstetric trauma to pelvic organs (O71.-)
Excludes2
Code also
  • any associated open wound (S31.-)

Broader instructions also apply from S30-S39 Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about S37.021

Is S37.021 billable?

No. S37.021 is a header code. Report one of its more specific subcodes instead.