D37.9 — Neoplasm of uncertain behavior of digestive organ, unspecified
Is D37.9 billable?
Yes, but D37.9 is an unspecified code. D37.9 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, D37.9 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 D37.9 — the more specific alternatives are listed below.
More specific alternatives
- D37.0Neoplasm of uncertain behavior of lip, oral cavity and pharynxnot billable
- D37.1Neoplasm of uncertain behavior of stomach
- D37.2Neoplasm of uncertain behavior of small intestine
- D37.3Neoplasm of uncertain behavior of appendix
- D37.4Neoplasm of uncertain behavior of colon
- D37.5Neoplasm of uncertain behavior of rectum
- D37.6Neoplasm of uncertain behavior of liver, gallbladder and bile ducts
D37.9 at a glance
| Code | D37.9 |
|---|---|
| Description | Neoplasm of uncertain behavior of digestive organ, unspecified |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does D37.9 group to?
D37.9 sits in MDC 06 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 374Digestive Malignancy with MCCmedical
- 375Digestive Malignancy with CCmedical
- 376Digestive Malignancy without CC/MCCmedical
How is D37.9 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to D37.9. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Gastrinoma › unspecified site
- Tumor › papillary › cystic
Excludes1 — never code together — inherited from D37-D48
The conditions below can never be reported together with D37.9 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- neoplasms of unspecified behavior (D49.-)
Excludes1 — never code together — inherited from D37
The conditions below can never be reported together with D37.9 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- stromal tumors of uncertain behavior of digestive system (D48.1-)
How long has D37.9 existed?
D37.9 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
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 D37 family? (8)
- D37.0Neoplasm of uncertain behavior of lip, oral cavity and pharynxnot billable
- D37.1Neoplasm of uncertain behavior of stomach
- D37.2Neoplasm of uncertain behavior of small intestine
- D37.3Neoplasm of uncertain behavior of appendix
- D37.4Neoplasm of uncertain behavior of colon
- D37.5Neoplasm of uncertain behavior of rectum
- D37.6Neoplasm of uncertain behavior of liver, gallbladder and bile ducts
- D37.8Neoplasm of uncertain behavior of other specified digestive organs