The statement about nursing diagnosis is correct.

Nursing diagnosis refers to the process of identifying patients' actual or potential health problems through comprehensive evaluation and analysis in the nursing process, and providing basis for formulating corresponding nursing intervention measures.

1. Objective: The purpose of nursing diagnosis is to make clear the nursing objectives, formulate corresponding nursing intervention measures for patients' health problems, and promote patients' rehabilitation and health.

2. Classification system: nursing diagnosis generally adopts standardized classification system, and the most commonly used one is the diagnosis classification system published by Nanda (North American Nursing Diagnostic Association) International Nursing Diagnostic Association. NANDA-I diagnostic classification system includes diagnosis, definition, related factors and indicators, which is convenient for nurses to make diagnosis and nursing intervention.

3. Diagnosis process: The process of nursing diagnosis includes data collection, data analysis and diagnosis determination. Nurses collect patients' health information through communication with patients, physical examination and consulting relevant inspection reports. Then the collected data are analyzed and comprehensively evaluated to identify the actual or potential health problems of patients and make corresponding nursing diagnosis.

4. Examples: Examples of nursing diagnosis include but are not limited to: insomnia, pain, dyspnea, loss of appetite, risk of infection, lack of self-care ability, etc. These diagnoses are made according to the specific conditions and needs of individual patients.

Benefits of nursing diagnosis

1. Directing individualized nursing: Nursing diagnosis can help nurses understand patients' specific health problems and needs, and provide guidance for formulating individualized nursing plans and nursing intervention measures. Nurses can carry out targeted nursing measures according to the diagnosis of patients and provide nursing services that meet the needs of patients.

2. Promote communication and collaboration: Nursing diagnosis provides a common language and reference point for communication and collaboration among nurses, patients and other nursing team members. Nurses can use diagnosis to describe and convey patients' health problems, making it easier for team members to understand and respond to patients' needs.

3. Improve nursing quality: Nursing diagnosis helps nurses to provide more accurate, comprehensive and effective care. By identifying patients' health problems and risk factors, nurses can give priority to emergency problems, prevent potential complications, and adjust nursing plans in time to meet patients' needs, thus improving nursing quality.