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C37 - Malignant neoplasm of thymus

ICD-10-CM Chapter 2: Neoplasms · C30-C39 Malignant neoplasms of respiratory and intrathoracic organs (C30-C39) · Top-level category · FY2027

Includes, Excludes and Coding Notes

Excludes 1 — Not Coded HereFrom C37

Mutually exclusive: these conditions are never reported together with this code.

  • malignant carcinoid tumor of the thymus (C7A.091)
IncludesFrom C30-C39 Malignant neoplasms of respiratory and intrathoracic organs (C30-C39)

Conditions this code covers.

  • malignant neoplasm of middle ear
Excludes 1 — Not Coded HereFrom C30-C39 Malignant neoplasms of respiratory and intrathoracic organs (C30-C39)

Mutually exclusive: these conditions are never reported together with this code.

  • mesothelioma (C45.-)
NotesFrom Chapter C00-D49

Instructional notes from the ICD-10-CM tabular list.

  • Functional activity
  • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
  • Morphology [Histology]
  • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
  • Primary malignant neoplasms overlapping site boundaries
  • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
  • Malignant neoplasm of ectopic tissue
  • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).

Inpatient DRG Payments

DRG 8271,653 discharges

Myeloproliferative Disorders Or Poorly Differentiated Neoplasms With Major O.r. Procedur

Avg. Medicare Payment

$20,022

Total Payment$26,045
Patient Responsibility$6,022
Hospital Charge$129,358
DRG 8291,888 discharges

Myeloproliferative Disorders Or Poorly Differentiated Neoplasms With Other Procedures Wi

Avg. Medicare Payment

$29,280

Total Payment$35,953
Patient Responsibility$6,672
Hospital Charge$166,692
DRG 8432,281 discharges

Other Myeloproliferative Disorders Or Poorly Differentiated Neoplastic Diagnoses With Mc

Avg. Medicare Payment

$16,010

Total Payment$20,165
Patient Responsibility$4,156
Hospital Charge$100,360
DRG 828997 discharges

Myeloproliferative Disorders Or Poorly Differentiated Neoplasms With Major O.r. Procedur

Avg. Medicare Payment

$12,885

Total Payment$18,461
Patient Responsibility$5,576
Hospital Charge$96,173
DRG 826871 discharges

Myeloproliferative Disorders Or Poorly Differentiated Neoplasms With Major O.r. Procedur

Avg. Medicare Payment

$43,606

Total Payment$53,045
Patient Responsibility$9,439
Hospital Charge$260,670

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with C37.