ICDcodes.org
FY2027

D38.4 — Neoplasm of uncertain behavior of thymus

Billable

Is D38.4 billable?

Yes — D38.4 is billable for FY2027. D38.4 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. D38.4 may be submitted for encounters from October 1, 2026 through September 30, 2027.

D38.4 at a glance

CodeD38.4
DescriptionNeoplasm of uncertain behavior of thymus
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Which MS-DRGs does D38.4 group to?

D38.4 sits in MDC 04 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.

  • 180Respiratory Neoplasms with MCCmedical
  • 181Respiratory Neoplasms with CCmedical
  • 182Respiratory Neoplasms without CC/MCCmedical

Excludes1 — never code together — inherited from D37-D48

The conditions below can never be reported together with D38.4 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 D38

The conditions below can never be reported together with D38.4 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

  • neoplasm of uncertain behavior of heart (D48.7)

How long has D38.4 existed?

D38.4 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.

Which codes are confused with D38.4?

ICD-10-CM declares these codes mutually exclusive with D38.4 — exactly one of each pair can be correct for a given encounter.

What other codes are in the D38 family? (6)