2026 ICD-10-CM Diagnosis Code O90.81Anemia of the puerperium
ICD-10-CM Codes›O00-O9A›O85-O92›O90
- Billable — Valid for Submission
- Not Chronic
O90.81 is a billable ICD-10-CM diagnosis code for anemia of the puerperium. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is restricted by the Medicare Code Editor to maternity cases (age 9 through 64). Coders also document this condition as anemia during the puerperium. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Complications specified during the puerperium.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for O90.81.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Anemia during the puerperium
- Blood dyscrasia puerperal
- Postpartum iron deficiency anemia
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Postpartum anemia NOS
Type 1 Excludes
- pre-existing anemia complicating the puerperium O99.03
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Anemia(essential) (general) (hemoglobin deficiency) (infantile) (primary) (profound)
- postpartum
- Puerperal, puerperium(complicated by, complications)
- anemia
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Anemia
If you have anemia, your blood does not carry enough oxygen to the rest of your body. The most common cause of anemia is not having enough iron. Your body needs iron to make hemoglobin. Hemoglobin is an iron-rich protein that gives the red color to blood. It carries oxygen from the lungs to the rest of the body.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert O90.81 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About O90.81Overview
Is O90.81 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report anemia of the puerperium on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Who can O90.81 be reported for?
The Medicare Code Editor checks anemia of the puerperium against patient demographics: this code is intended for maternity cases (age 9 through 64). Claims outside these limits are flagged as inconsistent.
What is the ICD-9 equivalent of O90.81?
Under the General Equivalence Mappings, anemia of the puerperium converts to ICD-9-CM 648.24 (anemia-postpartum). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
