ICDcodes.org
FY2027

K31.A19 — Gastric intestinal metaplasia without dysplasia, unspecified site

BillableUnspecified

Is K31.A19 billable?

Yes, but K31.A19 is an unspecified code. K31.A19 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, K31.A19 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting K31.A19 — the more specific alternatives are listed below.

K31.A19 at a glance

CodeK31.A19
DescriptionGastric intestinal metaplasia without dysplasia, unspecified site
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does K31.A19 group to?

K31.A19 sits in MDC 06 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

  • 391Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders with MCCmedical
  • 392Esophagitis, Gastroenteritis and Miscellaneous Digestive Disorders without MCCmedical

How is K31.A19 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to K31.A19. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Metaplasia › gastric intestinal › without dysplasia

Excludes2 — not included here — inherited from Chapter 11

The conditions below are not part of K31.A19, but a patient may have both at the same time. When documentation supports it, K31.A19 and the excluded code may both be reported.

  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Excludes2 — not included here — inherited from K20-K31

The conditions below are not part of K31.A19, but a patient may have both at the same time. When documentation supports it, K31.A19 and the excluded code may both be reported.

Excludes2 — not included here — inherited from K31

The conditions below are not part of K31.A19, but a patient may have both at the same time. When documentation supports it, K31.A19 and the excluded code may both be reported.

How long has K31.A19 existed?

K31.A19 first appears in FY2022.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

What other codes are in the K31.A1 family? (5)