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NANDA International Nursing Diagnoses: Definitions and Classification 2021-2023

NANDA International Nursing Diagnoses: Definitions and Classification 2021-2023, Twelfth Edition is the definitive guide to nursing diagnoses, as reviewed and approved by NANDA International (NANDA-I) is available as an e-book via the MedOne Education platform, Thieme’s online resource for medical education.

Fully updated and revised by editors T. Heather Herdman, Shigemi Kamitsuru, and Camila Takáo Lopes, NANDA International Nursing Diagnoses: Definitions and Classification, 2021-2023, 12th Edition is the definitive guide to nursing diagnoses, as reviewed and approved by the NANDA International (NANDA-I) Diagnosis Development Committee (DDC). In this new edition of a seminal text, the editors have revised all introductory chapters, providing critical information needed for nurses to understand assessment, its link to diagnosis and clinical reasoning, and the purpose and use of taxonomic structure for nurses at the bedside. Researchers will also find new recommendations to improve the terminology.

Rigorously updated and revised, the new edition of this acclaimed text is a must-have resource for all nursing students, professional nurses, nurse educators, nurse informaticists, nurse researchers, and nurse administrators.

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NANDA International Nursing Diagnoses

Why use the NANDA-I Nursing Diagnoses, Definitions and Classification?

NANDA-I is the authoritative system for nursing diagnosis. Established in 1973, it is evidence based and rigorously, regularly, and thoroughly updated by a team of international nurse experts.

In this 2021–2023 version, the Twelfth Edition, the taxonomy provides 290 diagnoses, with the addition of 46 new diagnoses and 67 revised diagnoses. Each nursing diagnosis has been the product of one or more of our many NANDA-I volunteers, and most have a defined evidence base. Each new diagnosis has been debated and refined by our Diagnosis Development Committee (DDC) members, before finally being submitted to NANDA-I members for a vote of approval. Membership approval does not mean the diagnosis is “completed” or “ready to be used” across all countries or practice areas. We all know that practice and regulation of nursing varies from country to country. It is our hope that publication of these new diagnoses will facilitate further validation studies in different parts of the world, to achieve a higher level of evidence.

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What is NANDA International (NANDA-I)?

NANDA-I is a professional organization of nurses from around the world that develops, refines, and disseminates the terminology that accurately reflects nurses’ clinical judgments. NANDA-I contributes to patient safety and improved outcomes through the integration of evidence-based terminology into clinical practice and clinical decision-making.

Why is nursing diagnosis important?

Implementation of nursing diagnosis enhances every aspect of nursing practice from garnering professional respect to assuring consistent documentation representing nurses’ professional clinical judgment. It also ensures accurate documentation to enable reimbursement.

For The Student

For the nursing student

  • Instant access to NANDA-I title
  • Ideal for quick reference or in-depth review
  • Easily accessible – even offline – the perfect study companion
  • Covers the clinical and scientific topics your nursing students need to succeed
For The Instructor

For the Instructor

  • Require NANDA-I with no cost to students
  • Easily download images for lectures
  • Create custom playlists for every course
  • Add notes for future reference
For The Instituiton

For the institution

  • Invite students to learn anytime or place
  • Improve efficient teaching
  • Appeal to prospective students and faculty
  • Save time through high user-friendliness

Find out more in the NANDA-I Introduction Video:

Already have access?

If your institution already has access to NANDA-I on MedOne Education, please visit:

Original literature support

Literature support, as referred to by the majority of NANDA-I diagnoses, is available here.

Request an Exam Copy

To request an exam copy of NANDA International Nursing Diagnoses: Definitions & Classification 2021-2023, please complete the form here.

Digital Licensing

The diagnoses contained in NANDA International Nursing Diagnoses: Definitions and Classification, 2021-2023, Twelfth Edition, are to nursing what ICD is to physicians and DSM is to mental health professionals. EHR programs populated with NANDA-I support healthcare organizations by gathering data and by allowing nurses to attain excellence in assessment and, through that excellence, to prevent money-costing incidents.
Digital licenses to the NANDA-I diagnostic system encourage conversation and progress in nursing by implementing standardized terminology. Along with use of the full set diagnoses, digital licenses include the terms in .xml, .txt, or relational database format. If you are interested in use of the NANDA-I taxonomy in any format or wish to apply to re-use it in any print or electronic product, please contact

Translation and Foreign Rights Licensing

For inquiries on translation rights into Portuguese and Japanese, please contact
For inquiries on translation rights into all other languages, please contact

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