K29 vs K44

K29 (Gastritis and duodenitis) compared with K44 (Diaphragmatic hernia), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. K29 carries an Excludes2 note covering K44: “hiatus hernia (K44.-)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

	K29Gastritis and duodenitis	K44Diaphragmatic hernia
Billing status	Non-billable header Report instead: K29.00, K29.01, K29.20, K29.21, K29.30	Non-billable header Report instead: K44.0, K44.1, K44.9
Classification	K00-K95 — Diseases of the Digestive System (K00-K95)	K00-K95 — Diseases of the Digestive System (K00-K95)
Definition	Gastritis and duodenitis is a non-billable ICD-10-CM category code (K29).	Diaphragmatic hernia is a non-billable ICD-10-CM category code (K44).
Includes	—	hiatus hernia (esophageal) (sliding) paraesophageal hernia acquired hernia congenital [except diaphragmatic or hiatus] hernia

Edit this comparison Check a whole claim

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources