2026 ICD-10-CM Diagnosis Code Z67.90Unspecified blood type, Rh positive
Z67.90 is a billable ICD-10-CM diagnosis code for unspecified blood type, Rh positive. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). 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 Other specified status.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z67.90.
Present on Admission (POA)Billing
Z67.90 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- ABO group phenotype
- Blood group Para-Bombay
- Cartwright antigen type
- cde haplotype
- Chido-Rodgers blood group phenotype
- Chido-Rogers antigen type
- Ch-Rg- phenotype
- Co phenotype
- Colton blood group phenotype
- Cromer blood group phenotype
- Diego antigen type
- Duffy antigen type
- Duffy blood group
- Duffy blood group phenotype
- Finding of Rh blood group
- Finding of Rh genotype
- Gerbich blood group phenotype
- Gerbich negative phenotype
- Gerbich positive phenotype
- Gerbich type
- H antigen type
- Hh blood group phenotype
- I blood group phenotype
- Inab phenotype
- Kell antigen type
- Kell blood group phenotype
- Kidd antigen type
- Kidd blood group phenotype
- Kx antigen type
- Kx blood group phenotype
- Landsteiner-Weiner antigen type
- Landsteiner-Wiener phenotype
- Leach type
- Lewis blood group phenotype
- Low incidence antigen type
- Lutheran blood group phenotype
- Melasian type
- MNS antigen type
- MNS blood group phenotype
- P blood group phenotype
- Rh blood group phenotype
- RhD positive
- Yus type
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Blood
- type
- Rh (positive) - Z67.90
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Blood
- type
- Rh (positive)
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
ABO Blood Group|ABO Blood Type|ABO blood group system|ABO_Type
a blood group system based on recognition of inherited differences in the h antigen as expressed on erythrocytes.Blood Group A|A|Blood Type A
a blood group indicating the presence on erythrocytes of only the a form of the h antigen.Blood Group AB|AB|Blood Type AB
a blood group indicating the presence on erythrocytes of both the a and b forms of the h antigen.Blood Group B|B|Blood Type B
a blood group indicating the presence on erythrocytes of only the b form of the h antigen.Blood Group O|Blood Type O|O
a blood group indicating the absence on erythrocytes of both the a and b forms of the h antigen.Blood Group|Blood Type
a classification of blood based on the presence or absence of inherited antigenic substances on the surface of erythrocytes.Blood Type
the specific reaction pattern of erythrocytes of an individual to the antisera of one blood group; e.g., the abo blood group consists of four major blood types: o, a, b, and ab. this classification depends on the presence or absence of two major antigens: a or b. type o occurs when neither is present and type ab when both are present. the blood type is the genetic phenotype of the individual for one blood group system and may be determined using different antisera available for testing.Blood Type Determination
a diagnostic test to classify the blood type of an individual. it is determined based on the presence or absence of certain antigens on the red blood cells surface.Blood Typing Test|Blood Group Determination|Blood Group Typing|Blood Group Typing Test|Blood Type Determination|Blood Typing
clinical laboratory tests that detect and identify the antigens expressed by red blood cells to determine a subject's blood type.
Patient EducationClinical
Blood
Your blood is made up of liquid and solids. The liquid part, called plasma, is made of water, salts, and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells, and platelets.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z67.90 to ICD-9-CMHistory
Code HistoryHistory
Questions About Z67.90Overview
Is Z67.90 (Unspecified blood type) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified blood type, Rh positive on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Can Z67.90 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because unspecified blood type, Rh positive describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z67.90 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 unspecified blood type, Rh positive on inpatient claims.
