ICD-9-CM 538
CMS Source: final ICD-9-CM release (version date October 1, 2014). Retired from U.S. claims after September 30, 2015.FacebookXLinkedInPrint

538 is a legacy ICD-9-CM diagnosis code for gastrointestinal mucositis (ulcerative). It was valid on U.S. claims through September 30, 2015 and cannot be reported for services on or after October 1, 2015, when ICD-10-CM replaced the ICD-9 code set. Under the CMS General Equivalence Mappings, its ICD-10-CM replacement is K92.81 (Gastrointestinal mucositis (ulcerative)), flagged as a direct match.

Code Identity

ICD-9-CM Code
538
Valid for Submission
No — Legacy Code
Code Describes
Gastrointestinal mucositis (ulcerative)
Parent Block
538 Gastrointestinal mucositis (ulcerative)
Short Description
GI mucositis (ulceratve)
ICD-10-CM Replacement

Convert 538 to ICD-10-CM

Based on the final CMS General Equivalence Mappings (GEMs), 538 crosswalks to the following ICD-10-CM code.

ICD-10-CM
K92.81 Gastrointestinal mucositis (ulcerative)
Exact Match The mapping is direct, with no qualifiers.

Index of Diseases References

Entries in the final ICD-9-CM Index to Diseases and Injuries that point to 538. Tap the icons for the official index conventions.

  • Meningioma M9530 0 SEE ALSO Neoplasm meninges benign
  • Mucositis SEE ALSO Inflammation by site 528.00
    • gastrointestinal ulcerative 538

Questions About 538

Is 538 (gastrointestinal mucositis (ulcerative)) still a valid code?

No. This code belonged to ICD-9-CM, which the United States retired after September 30, 2015. Claims with dates of service on or after October 1, 2015 must use ICD-10-CM codes, such as its replacement K92.81.

What is the ICD-10 replacement for 538?

The General Equivalence Mappings crosswalk this code directly to ICD-10-CM K92.81 (Gastrointestinal mucositis (ulcerative)), a one-to-one match.

What did 538 mean?

In the final ICD-9-CM release, this code described gastrointestinal mucositis (ulcerative). It sat in block 538 Gastrointestinal mucositis (ulcerative) under Diseases of the digestive system (520–579).