K29.4 – Chronic atrophic gastritis
ICD-10-CM 2027 diagnosis code · Diseases of esophagus, stomach and duodenum
ICD-10-CM code
K29.4
- Code
K29.4(claims format:K294)- Description
- Chronic atrophic gastritis
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 11. Diseases of the digestive system (K00-K95)
- Block
- K20-K31 Diseases of esophagus, stomach and duodenum
- Parent codes
- K29
Billable codes under K29.4
K29.4 is a header code and cannot be used on claims. Choose the most specific code:
Notes for K29.4
Applicable to:
- Gastric atrophy
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
K29 – Gastritis and duodenitis
Excludes1 (not coded here):
Block K20-K31
Excludes2 (not included here):
- hiatus hernia (K44.-)
Related codes in K29
Frequently asked questions
What is ICD-10 code K29.4?
K29.4 is the ICD-10-CM code for chronic atrophic gastritis, in the block K20-K31 (Diseases of esophagus, stomach and duodenum).
Is K29.4 a billable code?
No. K29.4 is a header code with more specific child codes; report one of the billable codes listed above.
What category does K29.4 belong to?
It belongs to category K29 – Gastritis and duodenitis.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.