2027 ICD-10-CM Diagnosis Code D29.21Benign neoplasm of right testis
ICD-10-CM Codes›C00–D49›D10-D36›D29
- Billable — Valid for Submission
- Not Chronic
D29.21 is a billable ICD-10-CM diagnosis code for benign neoplasm of right testis. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 729 through 730. Coders also document this condition as benign neoplasm of left testis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign neoplasms.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Benign neoplasm of left testis
- Benign neoplasm of right testis
- Benign neoplasm of testis
- Bilateral benign neoplasm of testes
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to D29.21: its own notes plus those printed at D29.2, D29, and Chapter 2. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- benign neoplasm of skin of male genital organs
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify any functional activity.
Notes
General instructions on how these codes are used.
- 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).
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name D29.21, its category, or a range that includes it.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Benign Testicular Neoplasm
a neoplasm that arises from the testis and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| testis, testes | C62.9 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › descended | C62.1 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › ectopic | C62.0 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › retained | C62.0 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › scrotal | C62.1 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › undescended | C62.0 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
| testis, testes › unspecified whether descended or undescended | C62.9 | C79.82 | D07.69 | D29.2 | D40.1 | D49.59 |
Patient EducationClinical
Benign Tumors
Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert D29.21 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About D29.21Overview
What is the ICD-10 code for benign neoplasm of right testis?
The ICD-10-CM code for benign neoplasm of right testis is D29.21 (sometimes written as D2921). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is D29.21 (Benign neoplasm of testis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report benign neoplasm of right testis on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does D29.21 group to?
When benign neoplasm of right testis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 729, 730, with relative weights from 0.6595 to 1.0553 depending on complications. Higher weights mean higher Medicare reimbursement.
Does D29.21 need an additional code?
When the condition applies, yes. The Use Additional Code note at D29.2, which applies to D29.21, reads: code to identify any functional activity.. The additional code is reported after D29.21.
What is the ICD-9 equivalent of D29.21?
Under the General Equivalence Mappings, benign neoplasm of right testis converts to ICD-9-CM 222.0 (benign neoplasm testis). The mapping is approximate, so confirm the match fits the documentation.
