ICD-10-CM Alphabetic Index · FY 2026 9 Entries
Constipation in the ICD-10-CM Index ICD-10-CM
The main term Constipation (atonic) (neurogenic) (simple) (spastic) carries 9 index entries pointing to 7 ICD-10-CM codes. The default entry is K59.00, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
9
Index Entries
7
Codes Referenced
K59.00
Default Code
C
Letter
9 of 9 shown
ICD-10-CM
Index Entries Under Constipation 9 entries · 7 codes
Constipation (atonic) (neurogenic) (simple) (spastic) K59.00
chronic K59.09
idiopathic K59.04
drug-induced K59.03
functional K59.04
outlet dysfunction K59.02
psychogenic F45.8
slow transit K59.01
specified NEC K59.09
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
