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Compare/K91 vs K94

K91 vs K94

K91 (Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified) compared with K94 (Complications of artificial openings of the digestive system), 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. K91 carries an Excludes2 note covering K94: “complications of artificial opening of digestive system (K94.-)”

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

Side by side

K91Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classifiedK94Complications of artificial openings of the digestive system
Billing statusNon-billable header

Report instead: K91.0, K91.1, K91.2, K91.30, K91.31

Non-billable header

Report instead: K94.00, K94.01, K94.02, K94.03, K94.09

ClassificationK00-K95 — Diseases of the Digestive System (K00-K95)K00-K95 — Diseases of the Digestive System (K00-K95)
DefinitionIntraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified is a non-billable ICD-10-CM category code (K91).Complications of artificial openings of the digestive system is a non-billable ICD-10-CM category code (K94).
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources