D15.0 - Benign neoplasm of thymus

Version 2023

ICD-10:	D15.0
Short Description:	Benign neoplasm of thymus
Long Description:	Benign neoplasm of thymus
Status:	Valid for Submission
Version:	ICD-10-CM 2023
Code Classification:	Neoplasms (C00–D48) Benign neoplasms, except benign neuroendocrine tumors (D10-D36) Benign neoplasm of other and unsp intrathoracic organs (D15)

1. Approximate Synonyms
2. Clinical Information
3. Tabular List of Diseases and Injuries
4. Index to Diseases and Injuries References
5. Diagnostic Related Groups - MS-DRG Mapping
6. Convert to ICD-9 Code
7. Table of Neoplasms
8. Patient Education
9. Related Codes Browser
10. Code History

D15.0 is a billable ICD-10 code used to specify a medical diagnosis of benign neoplasm of thymus. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.

The following anatomical sites found in the Table of Neoplasms reference this diagnosis code given the correct histological behavior: Neoplasm, neoplastic thymus (gland) .

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Benign neoplasm of superior mediastinum
Benign neoplasm of thymus
Benign thymoma
Myasthenia gravis associated with thymoma
Thymoma

Clinical Information

Thymoma-. a neoplasm originating from thymic tissue, usually benign, and frequently encapsulated. although it is occasionally invasive, metastases are extremely rare. it consists of any type of thymic epithelial cell as well as lymphocytes that are usually abundant. malignant lymphomas that involve the thymus, e.g., lymphosarcoma, hodgkin's disease (previously termed granulomatous thymoma), should not be regarded as thymoma. (from stedman, 25th ed)
Benign Thymoma-. a thymoma that is completely surrounded by a capsule, without evidence of capsular invasion, infiltration of the surrounding tissues, and metastases.
Experimental Organism Benign Thymoma Neoplasm|THYMOMA, BENIGN-. a benign neoplasm of the thymus, originating from epithelial thymus cells.

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:

Type 1 Excludes

benign carcinoid tumor of the thymus D3A.091

Index to Diseases and Injuries References

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for this diagnosis code are found in the injuries and diseases index:

- Thymoma - See Also: Neoplasm, thymus, by type;
- - microscopic - D15.0

Diagnostic Related Groups - MS-DRG Mapping

The is diagnosis code is grouped in the following groups for version MS-DRG V40.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). applicable from 10/01/2022 through 09/30/2023.

MS-DRG	MS-DRG Title	MCD	Relative Weight
814	RETICULOENDOTHELIAL AND IMMUNITY DISORDERS WITH MCC	16	1.8791
815	RETICULOENDOTHELIAL AND IMMUNITY DISORDERS WITH CC	16	1.0311
816	RETICULOENDOTHELIAL AND IMMUNITY DISORDERS WITHOUT CC/MCC	16	0.729

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Convert to ICD-9 Code

Source ICD-10 Code		Target ICD-9 Code
D15.0		212.6 - Benign neoplasm thymus

Table of Neoplasms

This code is referenced in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

Neoplasm, neoplastic	Malignant Primary	Malignant Secondary	CaInSitu	Benign	Uncertain Behavior	Unspecified Behavior
»Neoplasm, neoplastic »thymus (gland)	C37	C79.89	D09.3	D15.0	D38.4	D49.89

Patient Education

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.

Tumors are made up of extra cells. Normally, cells grow and divide to form new cells as your body needs them. When cells grow old, they die, and new cells take their place. Sometimes, this process goes wrong. New cells form when your body does not need them, and old cells do not die when they should. These extra cells can divide without stopping and may form tumor.

Treatment often involves surgery. Benign tumors usually don't grow back.

NIH: National Cancer Institute

[Learn More in MedlinePlus]

Endocrine Diseases

Your endocrine system includes eight major glands throughout your body. These glands make hormones. Hormones are chemical messengers. They travel through your bloodstream to tissues or organs. Hormones work slowly and affect body processes from head to toe. These include:

Growth and development
Metabolism - digestion, elimination, breathing, blood circulation and maintaining body temperature
Sexual function
Reproduction
Mood

If your hormone levels are too high or too low, you may have a hormone disorder. Hormone diseases also occur if your body does not respond to hormones the way it is supposed to. Stress, infection and changes in your blood's fluid and electrolyte balance can also influence hormone levels.

In the United States, the most common endocrine disease is diabetes. There are many others. They are usually treated by controlling how much hormone your body makes. Hormone supplements can help if the problem is too little of a hormone.