2027 ICD-10-CM Diagnosis Code Z83.430Family history of elevated lipoprotein(a)
Z83.430 is a billable ICD-10-CM diagnosis code for family history of elevated lipoprotein(a). It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 795, 951. The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. Coders also document this condition as family history of lipoprotein hyperlipoproteinemia. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Family history of disease.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z83.430.
Present on Admission (POA)Billing
Z83.430 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.
- Family history of lipoprotein hyperlipoproteinemia
- FH: Raised blood lipids
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Z83.430: its own notes plus those printed at Z83, 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.
- Family history of elevated Lp(a)
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 Z83.430, its category, or a range that includes it.
Use Additional Code 1
These codes say to use an additional code from the note, and Z83.430 is one of the codes named.
- Z15 Genetic susceptibility to disease
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
family (of) See Also: History, personal (of);
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Cholesterol
Cholesterol is a waxy, fat-like substance that's found in all the cells in your body. Your body needs some cholesterol to make hormones, vitamin D, and substances that help you digest foods. Your body makes all the cholesterol it needs. Cholesterol is also found in foods from animal sources, such as egg yolks, meat, and cheese.
The full article covers:
- What is cholesterol?
- What are HDL, LDL, and VLDL?
- What causes high cholesterol?
- What can raise my risk of high cholesterol?
- What other health problems can high cholesterol cause?
- How is high cholesterol diagnosed?
- How can I lower my cholesterol?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Code History & ChangesHistory
Replacement Z83.430 replaces the following previously assigned code(s):
- Z83.49 - Family history of endo, nutritional and metabolic diseases
Questions About Z83.430Overview
What is the ICD-10 code for family history of elevated lipoprotein(a)?
The ICD-10-CM code for family history of elevated lipoprotein(a) is Z83.430 (sometimes written as Z83430). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is Z83.430 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report family history of elevated lipoprotein(a) on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does Z83.430 group to?
On inpatient claims, family history of elevated lipoprotein(a) maps to MS-DRG 951, 795, with relative weights from 0.2022 to 0.5574 depending on complications. Higher weights mean higher Medicare reimbursement.
Can Z83.430 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because family history of elevated lipoprotein(a) describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z83.430 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 family history of elevated lipoprotein(a) 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.
