Mood is what a client reports feeling; affect is what a clinician observes about the client’s emotional expression. In a mental status examination (MSE), mood captures the client’s subjective emotional experience, while affect describes observable features such as facial expression, vocal tone, and emotional reactivity. For example, a client may report feeling depressed while appearing tearful, or describe feeling anxious while displaying little visible emotional change.
Documenting mood and affect separately helps clinicians communicate what the client experiences and what they observe during the encounter. The terms should describe the presentation accurately, not serve as diagnoses on their own.
This guide explains the difference between mood vs affect, provides a practical affect word bank with documentation examples, and shows how to write a clear mood-and-affect section in an MSE. For where these domains sit in the wider exam, see the mental status exam cheat sheet.
The distinction is supported by the clinical overview in StatPearls’ Mental Status Examination, which describes mood as the client’s subjective account and affect as the clinician’s interpretation of observed emotional expression.
How to assess mood
Ask an open-ended question, such as:
- “How would you describe your mood today?”
- “How have you been feeling emotionally over the past few days?”
- “What words best describe how you feel right now?”
When useful, record the client’s own words in quotation marks. For example:
Mood: “I’ve been feeling low and hopeless for the past two weeks.”
This preserves the client’s account rather than replacing it with a clinical label prematurely.
How to assess affect
Observe the client’s emotional expression throughout the interview, not just at the moment you ask about mood. Consider:
- Facial expressions and visible emotional cues
- Vocal tone and changes in emotional expression
- The range and intensity of displayed emotions
- How readily the expression changes during conversation
- Whether the observed expression appears consistent with the reported mood and the context
For example:
Affect: Constricted, with limited facial expression and minimal variation in vocal tone.
This describes observable features without assuming what the client is experiencing internally.
Affect descriptors for the mental status exam: A practical word bank
A useful affect description does more than select a word from a list. It identifies the relevant dimension of emotional expression and, when appropriate, supports the descriptor with an observation.
Four useful dimensions are range, intensity, congruence, and stability. These dimensions are related, but they are not interchangeable. A client may have a restricted range of affect while displaying an intense emotional response to a particular subject.
1. Range: How varied is the emotional expression?
Range refers to the variety of emotions a client displays during the encounter.
Constricted and restricted are frequently used interchangeably in clinical documentation. If your organization defines them differently, follow its preferred terminology and apply it consistently.
A limited range does not automatically mean a client feels little emotion. The client may experience strong emotions without displaying a wide range of expression.
2. Intensity: How strongly is emotion expressed?
Intensity describes the apparent strength or amplitude of emotional expression. It is distinct from range: a client can display a narrow range of emotions intensely, or a broad range with relatively subdued expression.
Blunted and flat affect are related terms, but they are not necessarily identical in every clinical framework. In general, blunted describes substantially reduced emotional expression, while flat describes a near absence of observable expression.
Document what you observe rather than assuming that reduced outward expression means the client is emotionally disengaged. Slowed movement alongside reduced expression is a separate psychomotor finding.
3. Congruence: Does the expression fit the reported mood and context?
Congruence describes the relationship between a client’s observed affect and their reported mood, the content of the conversation, or the situation. Specify the comparison when possible.
An apparent mismatch does not, by itself, establish deception, lack of insight, or a particular diagnosis. Nervous laughter, cultural norms, discomfort, trauma responses, and other factors may influence emotional expression. Describe the observation and interpret it in context.
4. Stability: How much does emotional expression change?
Stability refers to how readily or rapidly affect changes during the encounter.
These terms are not diagnoses in themselves. For example, an elevated mood does not establish mania, and a depressed mood alone does not establish a depressive disorder. Diagnosis requires consideration of the full clinical presentation, history, duration, impairment, and relevant diagnostic criteria. Where a rated measure supports the picture, the MADRS guide covers scoring and documenting depression ratings.
How to describe affect in a mental status exam: More useful terms
The following descriptors can help clinicians document emotional expression more precisely. They supplement the four dimensions above rather than replacing them. For vocabulary across every MSE domain, see the complete descriptor word list.
Some words can describe either reported mood or observed affect, depending on how they are used. For example, a client may report feeling anxious, while the clinician may observe an anxious affect. Make the source of the information clear in the note.
Important distinction: Guarded is often an attitude or interpersonal-behavior descriptor, rather than a specific affect-quality term. If the client is reluctant to disclose personal information, document that behavior directly in appearance and behavior instead of using guarded as a substitute for describing emotional expression.
Affect examples for the mental status exam
The following examples show how to combine a descriptor with the observed evidence. They are illustrative documentation examples, not diagnostic templates.
Example 1: Depressed mood with congruent affect
Mood: “I’ve been feeling sad and exhausted.”
Affect: Constricted and tearful, congruent with reported mood; limited variation in facial expression while discussing recent stressors.
Why it works: The note separates the client’s report from the clinician’s observation and explains how the affect appeared during the encounter.
Example 2: Anxious mood with visible tension
Mood: “I’m worried about what will happen at work.”
Affect: Anxious, with a tense facial expression and frequent fidgeting while discussing workplace concerns.
Why it works: The clinician documents specific observations instead of relying on a vague label such as “nervous presentation.”
Example 3: Reported sadness with apparently incongruent affect
Mood: “I feel terrible about what happened.”
Affect: Smiling intermittently while describing the event; observed affect appears incongruent with the reported sadness.
Why it works: The wording describes the apparent mismatch without assuming why it occurred or suggesting that the client is being dishonest.
Example 4: Restricted affect with a neutral mood report
Mood: “Things have been okay.”
Affect: Restricted, with limited facial variation and minimal change in vocal tone during the interview.
Why it works: The client reports a relatively neutral mood, but the clinician independently describes the range of observed expression.
Example 5: Labile affect during an emotionally charged conversation
Mood: “I don’t really know how I feel.”
Affect: Labile, shifting from laughter to tearfulness within a short period while discussing recent relationship difficulties.
Why it works: The note gives an observable example of the rapid change rather than using labile without supporting detail.
Example 6: Elevated mood with expansive affect
Mood: “I’ve never felt better. Everything is going to work out.”
Affect: Expansive and animated, with sustained smiling and pronounced gestures throughout the encounter.
Why it works: The documentation describes the client’s report and presentation separately. Further assessment would be needed to determine the clinical significance of these findings.
How to write a complete mood-and-affect section
A practical MSE entry usually needs only a few carefully chosen details. Include the client’s report, the observed affect, and any clinically relevant relationship between them.
Use this structure:
- Mood: Record the client’s description, preferably in their own words when useful.
- Affect: Describe the observable emotional expression using one or more precise descriptors.
- Supporting observation: Add a brief example when it clarifies the descriptor.
- Congruence: State whether affect appears congruent or incongruent with the reported mood or conversational context when clinically relevant.
Example of concise documentation
Mood: “I’ve been anxious most days this week.”
Affect: Anxious and mildly constricted, with visible tension and limited variation in facial expression; congruent with reported mood.
This format is more informative than writing only “mood anxious, affect appropriate” because it communicates both the client’s experience and the clinician’s observations.
You do not need to use every possible descriptor in each note. Choose the terms that best capture the presentation relevant to the encounter.
Common mistakes when documenting mood vs affect
1. Recording mood as if it were observed
Writing “mood depressed” without clarifying whether the client reported feeling depressed can blur the distinction between subjective experience and observation.
Better: “Mood: Client reports feeling depressed. Affect: Tearful, with a restricted range.”
2. Using “appropriate” without explaining what it means
“Appropriate affect” can be too vague when the presentation has clinically relevant features.
Better: “Affect appropriate to context, with visible concern while discussing the recent hospitalization.”
If no further detail is clinically necessary, a concise description may still be sufficient.
3. Treating flat, blunted, and constricted as interchangeable
These terms describe different aspects or degrees of emotional expression. Flat affect generally indicates little observable expression; blunted affect indicates markedly reduced intensity; constricted affect describes a limited range.
Use the term that most closely matches the observed presentation and follow your organization’s documentation conventions.
4. Assuming incongruent affect proves a diagnosis
A mismatch between mood and affect may be clinically relevant, but it does not establish a particular disorder or explain the reason for the mismatch.
Better: Document the reported mood, the observed expression, and the context. Consider other findings before drawing conclusions.
5. Overlooking cultural and individual differences
Eye contact, facial expressiveness, gestures, vocal tone, and emotional disclosure vary across people and cultural contexts. Neurodivergence, disability, medication effects, fatigue, and situational discomfort may also influence expression. Eye contact in particular is an appearance and behavior finding rather than an affect one.
Avoid treating a difference from the clinician’s expectations as evidence of pathology without considering the broader context.
Final takeaway
The distinction between mood vs affect is straightforward: document what the client says they feel separately from what you observe. Use precise affect descriptors for range, intensity, stability, and congruence, and support them with brief behavioral examples when needed.
A useful MSE does not depend on using the longest possible list of clinical terms. It depends on choosing accurate, neutral language that helps another clinician understand the client’s presentation at that point in time.
For the rest of the exam, see the mental status exam cheat sheet and the complete descriptor word list, or the domain guides to appearance and behavior, thought process and thought content. Where an acute change in mental state is the presenting concern, the altered mental status ICD-10 guide covers how it is coded.
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