K31.A0 (Gastric intestinal metaplasia, unspecified) compared with K44 (Diaphragmatic hernia), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Distinct conditions — both may be reported.
“hiatus hernia (K44.-)”
An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.
Source: CMS ICD-10-CM tabular instructional notes
Yes, when both are documented. K31.A0 carries an Excludes2 note covering K44: “hiatus hernia (K44.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
| K31.A0Gastric intestinal metaplasia, unspecified | K44Diaphragmatic hernia | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | K00-K95 — Diseases of the Digestive System (K00-K95) | K00-K95 — Diseases of the Digestive System (K00-K95) |
| Definition | Gastric intestinal metaplasia, unspecified is a billable ICD-10-CM diagnosis code (K31.A0). | Diaphragmatic hernia is a non-billable ICD-10-CM category code (K44). |
| Includes | functional disorders of stomach Gastric intestinal metaplasia indefinite for dysplasia Gastric intestinal metaplasia NOS | hiatus hernia (esophageal) (sliding) paraesophageal hernia acquired hernia congenital [except diaphragmatic or hiatus] hernia |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources