K59.0

Non-Billable
ChapterK00–K95
Ranksubcategory
Official Description

Constipation

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

Instructional Notes

Excludes1(Not coded here)
Excludes2(Not included here)
  • incomplete defecation (R15.0)
General instructions are available for the parent sections:
View CH11 NotesView K59 Notes

Clinical Hierarchy

CH11Diseases of the digestive system (K00-K95)
K55-K64Other diseases of intestines (K55-K64)
K59Other functional intestinal disorders
K59.0Constipation
K59.00Constipation, unspecified
K59.01Slow transit constipation
K59.02Outlet dysfunction constipation
K59.03Drug induced constipation
K59.04Chronic idiopathic constipation
K59.09Other constipation

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K59.0:

categoryK59
Other functional intestinal disorders
View context instructions
chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to K59.0. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

9 raw paths
Constipation (atonic) (neurogenic) (simple) (spastic)8 unique routes
Direct index entry→K59.0
chronic→K59.0(2 variants)
idiopathic→K59.0
drug-induced→K59.0
functional→K59.0
outlet dysfunction→K59.0
slow transit→K59.0
specified NEC→K59.0
Dyschezia1 unique routes
Direct index entry→K59.0

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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