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K91

Non-billable

Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified

K91 is the ICD-10-CM code for Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified. It is a non-billable category code — use a more specific child code such as K91.0 for billing.

Status
Header (non-billable)
Chapter
K00-K95
Subcodes
8
Edition
FY2026

K00-K95 Diseases of the digestive system

Excludes2 — not included here

  • •complications of artificial opening of digestive system (K94.-)
  • •complications of bariatric procedures (K95.-)
  • •gastrojejunal ulcer (K28.-)
  • •postprocedural (radiation) retroperitoneal abscess (K68.11)
  • •radiation colitis (K52.0)
  • •radiation gastroenteritis (K52.0)
  • •radiation proctitis (K62.7)

Frequently asked questions

What is ICD-10 code K91?
K91 is the ICD-10-CM code for "Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified". It falls under K00-K95 Diseases of the digestive system.
Is K91 a billable code?
No — K91 is a non-billable header code. Use a more specific child code (such as K91.0) for billing.
What are the subcodes of K91?
K91 has 8 more specific child codes, including K91.0, K91.1, K91.2.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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