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K55.05 ICD-10-CM Code: Acute (reversible) ischemia of intestine, part unspecified

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Official Registry Overview & Definition

Acute (reversible) ischemia of intestine, part unspecified is a non-billable ICD-10-CM category code (K55.05). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for K55.05 in the official ICD-10-CM tabular list.

Excludes1 — Not Coded Here

Conditions generally not reported together with this code (Excludes1) -- an error unless the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Frequently Compared Codes

The official Excludes notes on K55.05 name these codes. Each comparison page covers when the two can — or must not — be reported together.

Change history

  • FY2017 — 2016-10-01
    Added to the code set
    Acute (reversible) ischemia of intestine, part unspecified
    FY2017 changes

Verify Before Coding

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Relationships & Classification

Official ICD-10-CM tabular notes on other codes that name K55.05 or its code family.

2 Excludes2 notes: I74 (via K55.0.-), I82 (via K55.0.-).

Contextual Map

Every relationship of K55.05 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • K00-K95 — Chapter 11: Diseases of the Digestive System (K00-K95) (K00-K95) [Hierarchy]
  • K55-K64 — Other diseases of intestines [Hierarchy]

Referenced by Excludes2 notes

  • I74 — Arterial embolism and thrombosis [Excludes2](via K55.0.-): “mesenteric embolism and thrombosis (K55.0-)” · check together
  • I82 — Other venous embolism and thrombosis [Excludes2](via K55.0.-): “mesenteric (K55.0-)” · check together

Nearest codes (36)

  • K55 — Vascular disorders of intestine [Sibling]
  • K55.0 — Acute vascular disorders of intestine [Sibling]
  • K55.01 — Acute (reversible) ischemia of small intestine [Sibling]
  • K55.011 — Focal (segmental) acute (reversible) ischemia of small intestine [Sibling]
  • K55.012 — Diffuse acute (reversible) ischemia of small intestine [Sibling]
  • K55.019 — Acute (reversible) ischemia of small intestine, extent unspecified [Sibling]
  • K55.02 — Acute infarction of small intestine [Sibling]
  • K55.021 — Focal (segmental) acute infarction of small intestine [Sibling]
  • and 28 more

Change history

  • FY2017 — Added to the code set [Change history]

Frequently Asked Questions (FAQ) & Clinical Guidance

Can K55.05 be billed directly?

No. K55.05 (Acute (reversible) ischemia of intestine, part unspecified) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to K55.05 in its code family, with their registry titles.

  • K55.039 — Acute (reversible) ischemia of large intestine, extent unspecified
  • K55.04 — Acute infarction of large intestine
  • K55.041 — Focal (segmental) acute infarction of large intestine
  • K55.042 — Diffuse acute infarction of large intestine
  • K55.049 — Acute infarction of large intestine, extent unspecified
  • K55.051 — Focal (segmental) acute (reversible) ischemia of intestine, part unspecified
  • K55.052 — Diffuse acute (reversible) ischemia of intestine, part unspecified
  • K55.059 — Acute (reversible) ischemia of intestine, part and extent unspecified
  • K55.06 — Acute infarction of intestine, part unspecified
  • K55.061 — Focal (segmental) acute infarction of intestine, part unspecified

View all codes in the K55 family