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Dx

ICD-10-CM 2027 diagnosis code

S36.4Injury of small intestine

Not billable — use a more specific codeRequires 7th character

S36.4 is a header code, so it can't be reported by itself. Choose one of the 5 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 S36.4

S36.4 is the ICD-10-CM diagnosis code for injury of small intestine. It belongs to category S36 (injury of intra-abdominal 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 5 subcodes must be used instead.

Within S36 (injury of intra-abdominal organs), S36.4 is specifically for injury of small intestine. Related codes cover spleen (S36.0), liver and gallbladder and bile duct (S36.1), pancreas (S36.2), stomach (S36.3), colon (S36.5), rectum (S36.6), other intra-abdominal organs (S36.8) and unspecified intra-abdominal organ (S36.9).

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 S36

  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Notes that apply from higher levels

Instructions written at a parent level also apply to S36.4.

› From S36 Injury of intra-abdominal organs
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 S36.4

Is S36.4 billable?

No. S36.4 is a header code. Report one of its more specific subcodes instead.