2027 ICD-10-CM Diagnosis Code Z92.3Personal history of irradiation
Z92.3 is a billable ICD-10-CM diagnosis code for personal history of irradiation. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 951. The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Personal history of malignant neoplasm.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z92.3.
Present on Admission (POA)Billing
Z92.3 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cancer dataset administrative items
- History of brachytherapy
- History of external beam radiation therapy
- History of external beam radiation therapy to thyroid
- History of prostate seed brachytherapy
- History of radiation therapy
- History of radiation therapy to breast area
- History of radiation therapy to chest
- Radiotherapy course change due to progressive disease during radiotherapy
- Radiotherapy prior to lymphadenectomy
- Radiotherapy stopped
- Reason for change in radiotherapy course
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Z92.3: its own notes plus those printed at Z92, block Z77-Z99, and Chapter 21. A note printed at a category, block or chapter applies to every code under it.
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Personal history of exposure to therapeutic radiation
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Code Also
A second code may be needed to fully describe the condition; the note gives no sequencing direction.
Notes
General instructions on how these codes are used.
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name Z92.3, its category, or a range that includes it.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
personal (of) See Also: History, family (of);
irradiation Z92.3
radiation therapy Z92.3
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Radiation Therapy
Radiation therapy is a cancer treatment. It uses high doses of radiation to kill cancer cells and stop them from spreading. It may also be used for easing cancer symptoms. Radiation therapy may damage healthy cells. They can usually repair themselves more easily than cancer cells.
The full article covers:
- What is radiation therapy?
- When is radiation therapy used for cancer treatment?
- How is radiation therapy given?
- What are the side effects of radiation therapy?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z92.3 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z92.3Overview
What is the ICD-10 code for personal history of irradiation?
The ICD-10-CM code for personal history of irradiation is Z92.3 (sometimes written as Z923). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is Z92.3 (Personal history of medical treatment) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report personal history of irradiation on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does Z92.3 group to?
On inpatient claims, personal history of irradiation maps to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.5574. Higher weights mean higher Medicare reimbursement.
Can Z92.3 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because personal history of irradiation describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z92.3 exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for personal history of irradiation on inpatient claims. The code appears in the Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99) range of the CMS exempt list.
