Katie Brown, CCS • October 30, 2025

Coding Chronic Inactive Gastritis

Chronic inactive gastritis is often noted in an EGD result or path report. 


It is important to still code this, even though it is “inactive” as it can still greatly affect the patient’s quality of life and can increase the risk of developing stomach cancer in the future.  In some cases, untreated inactive gastritis can progress to active gastritis, which may require more aggressive treatment. 



INACTIVE VS ACTIVE Gastritis 


Inactive: chronic inflammation of stomach lining without tissue damage or injury 


Active: chronic inflammation with presence of neutrophils in stomach lining, with ongoing tissue damage or injury (example: with infection or ulceration) 


The neutrophils being there show the immune system is attempting to actively fight an issue. 



ICD-10 Codes don’t differentiate between active & inactive gastritis: 


K29.50 chronic gastritis without bleeding 

K29.51 chronic gastritis with bleeding 

Add code for infection, if that applies (example: B96.81 for Helicobacter pylori) 

Other specified gastritis has specific codes (atrophic, superficial, alcoholic, etc. – see ICD-10 index) 

 


What This Means in Practice 

 

  • Code chronic gastritis, even if documented as inactive 
  • Code to highest specificity according to ICD-10-CM index and tabular 
  • Code any secondary conditions that further explain in detail the patient’s condition 


 

Katie Brown, CCS, Senior Consultant, Audit at UASI

Katie Brown, CCS 

Senior Consultant, Audit at UASI

 

Katie Brown, CCS, is an AHIMA-certified Senior Coding Consultant specializing in CPT/ICD-10 coding, compliance audits, and revenue cycle support. She’s worked across diverse outpatient and inpatient settings, including ER, surgery, observation, and specialty clinics, and enjoys training coders with practical, CDI-friendly tips. 



Works Cited

Singh, N. (2023, July 14). Chronic inactive gastritis: Causes, symptoms, diagnosis, and treatment. iCliniq.
Available at https://www.icliniq.com/articles/gastro-health/chronic-inactive-gastritis#:~:text=Chronic%20inactive%20gastritis%20is%20a%20type%20of%20gastritis%20marked%20by,vomiting%2C%20and%20loss%20of%20appetite.

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