What is the recommended ICD-10 code for primary insomnia?

F51.01 is used for primary insomnia disorder (insomnia not attributable to a substance or another medical or mental health condition). G47.00 is used for insomnia, unspecified, when the type has not been determined. If insomnia is secondary to another condition (e.g., depression, chronic pain), code the primary condition first and add the insomnia code as a secondary diagnosis.

How many sessions does CBT-I typically require?

Standard CBT-I protocols consist of 4 to 8 sessions, typically delivered weekly. Most clients show significant improvement by session 4 to 6. Document the specific protocol being followed (Edinger, Perlis, or other validated model) and note the expected number of sessions at the start of treatment. This brief treatment course is a strength for justifying medical necessity.

Why is sleep diary data important for CBT-I progress notes?

Sleep diary data provides the objective foundation for all CBT-I clinical decisions. Sleep restriction targets are calculated from diary-derived sleep efficiency. Progress is measured by changes in sleep onset latency, wake after sleep onset, total sleep time, and sleep efficiency. Without sleep diary data, the clinician cannot make informed adjustments to the treatment protocol or demonstrate progress to reviewers.

How should clinicians document the rationale for sleep restriction therapy?

Document baseline sleep efficiency (calculated from sleep diary), the prescribed sleep window (time in bed), the rationale for the specific window chosen, and the adjustment criteria. Note that initial sleep restriction may temporarily increase daytime sleepiness, and document that the client was educated about this expected side effect and safety precautions (e.g., drowsy driving risk).

Progress Notes for Insomnia / Sleep Disorders (CBT-I)

Cognitive Behavioral Therapy for Insomnia (CBT-I) is a structured, evidence-based protocol that produces highly specific and quantifiable documentation. Unlike many therapy modalities where progress can be difficult to operationalize, CBT-I progress notes center on objective sleep metrics derived from client-completed sleep diaries. This makes CBT-I documentation unusually data-driven and amenable to demonstrating treatment effectiveness.

Progress notes for CBT-I sessions must document the sleep diary data reviewed, the clinical decisions made based on that data (particularly sleep window adjustments), the specific CBT-I components delivered, and the client's adherence to behavioral prescriptions. Because CBT-I is a brief protocol — typically four to eight sessions — each session's documentation should clearly indicate where the client is in the treatment sequence and what the plan is for the remaining sessions.

Core Data Elements

Sleep Diary Metrics

Every CBT-I progress note should include the following metrics calculated from the client's sleep diary for the preceding week:

Time in Bed (TIB): The total time from getting into bed to getting out of bed
Sleep Onset Latency (SOL): Time from lights out to sleep onset (target: under 20 minutes)
Wake After Sleep Onset (WASO): Total time awake during the night after initially falling asleep (target: under 30 minutes)
Total Sleep Time (TST): Actual hours of sleep obtained
Sleep Efficiency (SE): TST divided by TIB, multiplied by 100 (target: 85% or above)
Sleep quality rating: Client's subjective rating (typically 1-5 or 1-10 scale)
Number of awakenings: How many times the client woke during the night

CBT-I Component Documentation

Document which protocol components were delivered in each session:

Session 1-2 components:

Sleep education and sleep hygiene review
Sleep diary instruction and baseline data collection
Introduction to the CBT-I model and rationale

Session 2-3 components:

Sleep restriction therapy — prescribed sleep window based on baseline data
Stimulus control instructions
Safety considerations for sleep restriction

Session 3-5 components:

Sleep window adjustments based on sleep efficiency data
Cognitive restructuring of dysfunctional sleep beliefs
Relaxation training if appropriate

Session 5-8 components:

Continued titration of sleep window
Relapse prevention planning
Sleep belief reassessment

Stimulus Control Documentation

Document the specific stimulus control instructions and adherence:

Go to bed only when sleepy
Use the bed only for sleep and sex
If unable to sleep within approximately 20 minutes, get out of bed and go to another room
Return to bed only when sleepy again
Maintain consistent wake time regardless of sleep obtained
No daytime napping (or limited napping with specific parameters)

SOAP Note Example

SOAP Note: CBT-I Session

Date: 2026-03-18 Client: Patricia L., 52-year-old female Diagnosis: F51.01 Primary Insomnia Disorder; F41.1 Generalized Anxiety Disorder (stable, managed with sertraline 100mg) Session Type: Individual CBT-I, 50 minutes Session Number: 4 of planned 6

S (Subjective): Client reports "the sleep restriction is hard but I think it's starting to work." She states she has been maintaining the prescribed sleep window of 11:30 PM to 6:00 AM (6.5 hours TIB) with "pretty good" adherence this week — she reports going to bed at the prescribed time 5 of 7 nights and getting up at 6:00 AM all 7 mornings. She reports two nights this week where she fell asleep on the couch at 9:30 PM before her prescribed bedtime; she woke and moved to bed at 11:30 as instructed. She states she is falling asleep faster than before: "I used to lie there for an hour at least, now it's maybe 15-20 minutes." She reports waking once during the night on most nights (compared to 3-4 times at intake) and returning to sleep within 10-15 minutes. She endorses increased daytime sleepiness, particularly around 2:00-3:00 PM, and is drinking more coffee in the afternoon. She has been using the stimulus control rule of getting out of bed if awake for more than 20 minutes and reports doing this twice this week — both times she read in the living room and returned to bed when sleepy. Subjective sleep quality rating has improved from a baseline average of 2/10 to 5/10 this week. She reports using the worry journal at 9:00 PM as a "worry dump" before bed and finds it "somewhat helpful" for reducing bedtime rumination about her adult daughter's financial problems.

O (Objective): Sleep diary data reviewed for the period of 2026-03-11 to 2026-03-17:

Metric	Baseline (Week 1)	Week 2	Week 3 (Current)
Avg TIB	9.0 hrs	6.5 hrs	6.5 hrs
Avg SOL	62 min	35 min	18 min
Avg WASO	85 min	40 min	15 min
Avg TST	4.8 hrs	5.2 hrs	5.9 hrs
Avg SE	53%	80%	91%
Avg awakenings	3.7	2.1	1.1
Quality rating	2.1/10	3.7/10	5.0/10

Sleep efficiency has reached 91% for the current week, exceeding the 85% threshold for sleep window expansion. Client completed sleep diary 7 of 7 nights. She reports adherence to stimulus control instructions on 5 of 7 nights. Dysfunctional Beliefs and Attitudes about Sleep Scale (DBAS-16) administered today: score 4.2 (baseline: 7.1, clinical cutoff: 4.0). Key remaining dysfunctional beliefs: "I need 8 hours of sleep to function" (conviction: 70%) and "If I don't sleep well, I won't be able to do anything the next day" (conviction: 55%).

A (Assessment): Client is responding well to CBT-I with clinically significant improvements across all sleep metrics. Sleep efficiency has improved from 53% at baseline to 91%, meeting the criterion for sleep window expansion. Sleep onset latency has decreased from 62 minutes to 18 minutes (below the 20-minute clinical target), and wake after sleep onset has decreased from 85 minutes to 15 minutes (below the 30-minute target). Total sleep time has increased from 4.8 to 5.9 hours despite a 2.5-hour reduction in time in bed, demonstrating that the client was spending substantial non-sleep time in bed at baseline.

Adherence to the protocol has been good, with the notable exception of two early-evening couch naps before the prescribed bedtime. These appear driven by accumulated sleep pressure from the restriction protocol rather than treatment non-adherence. The client is applying stimulus control instructions and reports subjective benefit.

Two dysfunctional beliefs remain above threshold and will be the focus of cognitive work: the rigid belief about needing 8 hours (her natural sleep need appears to be closer to 6-6.5 hours based on diary data) and catastrophizing about the consequences of poor sleep. Behavioral experiments comparing functioning after different sleep durations would be appropriate.

P (Plan):

Expand sleep window by 15 minutes: new prescribed window is 11:15 PM to 6:00 AM (6.75 hours TIB). Adjust further based on next week's sleep efficiency data (expand if SE remains above 85%, maintain if 80-85%, restrict if below 80%).
Address couch-napping: establish an alerting activity (brief walk, light housework) for 9:00-10:00 PM to prevent premature sleep. Discuss reducing afternoon caffeine if daytime sleepiness improves with increased sleep window.
Cognitive restructuring: challenge the "8 hours" belief using her own diary data as evidence (functioning well on 5.9 hours). Assign behavioral experiment — rate next-day functioning on a 0-10 scale each day and compare with actual sleep duration.
Continue worry journaling at 9:00 PM. Introduce thought challenging for catastrophic predictions about poor sleep nights.
Begin relapse prevention planning at next session — discuss maintenance strategies and anticipation of occasional poor sleep nights.
Continue sleep diary daily.
Next session: Tuesday, 2026-03-25 at 3:00 PM. Anticipate 2 remaining sessions.

This is a sample for educational purposes only — not real patient data.

How to Write CBT-I Progress Notes

Lead with the data. CBT-I progress notes should present sleep diary metrics prominently. Calculate and document sleep efficiency, SOL, WASO, and TST for the review period. This data drives clinical decisions and demonstrates progress more powerfully than subjective reports alone.

Document the clinical rationale for sleep window adjustments. When you expand or restrict the sleep window, record why: "Sleep efficiency exceeded 85% for the past week (91%), meeting the criterion for a 15-minute expansion of the sleep window." This shows that protocol decisions are data-driven and clinically sound.

Track adherence to each CBT-I component. Document adherence to sleep restriction (prescribed window versus actual), stimulus control rules, and sleep hygiene recommendations separately. A client may adhere well to one component but not another, and this informs clinical decision-making.

Record dysfunctional beliefs and their change. Use the DBAS-16 or similar tool at baseline and periodically during treatment. Document specific beliefs targeted in cognitive work and track conviction ratings over time. This creates a clear record of the cognitive component of treatment.

Note safety considerations. Sleep restriction increases daytime sleepiness, particularly in the first two weeks. Document that you educated the client about drowsy driving risk, operating heavy machinery, and other safety concerns. Note any accommodations the client has made (e.g., arranging transportation, adjusting work schedules).

Common Mistakes

Providing only sleep hygiene education. Sleep hygiene alone is not CBT-I and is not an effective standalone treatment for chronic insomnia. If your notes only document sleep hygiene recommendations without sleep restriction, stimulus control, and cognitive components, you are not delivering CBT-I.

Failing to use a sleep diary. CBT-I without a sleep diary is like treating diabetes without blood glucose monitoring. If the client is not completing a sleep diary, document this as a treatment adherence barrier and address it directly. Do not make clinical decisions (especially sleep window adjustments) without diary data.

Adjusting the sleep window based on subjective report alone. Sleep window decisions should be based on calculated sleep efficiency from diary data. Clients' subjective estimates of sleep duration are frequently inaccurate. Document the data that drove each adjustment.

Omitting the cognitive component. Some clinicians deliver sleep restriction and stimulus control without addressing dysfunctional sleep beliefs. The cognitive component is an integral part of CBT-I and addresses the worry and catastrophizing that maintain insomnia. Document the beliefs targeted and the restructuring work done.

Not planning for discharge and maintenance. CBT-I is a brief, structured protocol. By session three or four, documentation should begin addressing relapse prevention, maintenance strategies, and discharge planning. Open-ended treatment for insomnia without a planned endpoint raises utilization review concerns.

Progress Notes for Insomnia / Sleep Disorders (CBT-I)

Progress Notes for Insomnia / Sleep Disorders (CBT-I)

Core Data Elements

Sleep Diary Metrics

CBT-I Component Documentation

Stimulus Control Documentation

SOAP Note Example

SOAP Note: CBT-I Session

How to Write CBT-I Progress Notes

Common Mistakes

Frequently Asked Questions

External Resources

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