K31.83
✓ Billable
Achlorhydria
ICD-10-CM · FY2026 · Diseases of the Digestive System
Code
K31.83
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Digestive System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code K31.83?
ICD-10-CM code K31.83 represents Achlorhydria. It is a billable diagnosis code in the Diseases of the Digestive System chapter, effective October 1, 2025 – September 30, 2026.
Is K31.83 billable?
Yes. K31.83 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is K31.83 in?
K31.83 belongs to the Diseases of the Digestive System chapter (K00–K95) of ICD-10-CM.
Related codes in the K31 category
K31
Other diseases of stomach and duodenum
Non-billable
K31.0
Acute dilatation of stomach
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K31.1
Adult hypertrophic pyloric stenosis
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K31.2
Hourglass stricture and stenosis of stomach
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K31.3
Pylorospasm, not elsewhere classified
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K31.4
Gastric diverticulum
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K31.5
Obstruction of duodenum
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K31.6
Fistula of stomach and duodenum
Billable
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