Skip to main content
Exact Dx synthetic data · demonstration
Extended criteria (experimental). This is the broader ten-condition engine, kept as a secondary area. It shows ICD-10-CM codes and illustrative grouping effects for CDI staff. The primary surface is Before you sign (kidney, measurement only). All extended pages.

← Back to the worklist · Whole encounter ENC-00101

Celeste Marlow: Acute respiratory failure

ENC-00101 · 63F · Hospital Medicine · admitted Wed Nov 11, 2026 08:39 AM · in hospital · attending Dr. Cyrus Ellingham

Specificity gap Criteria met Open In hospital: concurrent review

Documented “hypoxia” (R09.02); criteria support the more specific Acute respiratory failure with hypoxia (J96.01).

Documented vs supported

Documented
“hypoxia” · R09.02 Hypoxemia
Criteria support
Acute respiratory failure with hypoxia · J96.01 Acute respiratory failure with hypoxia
Outcome
Hypoxaemia criterion met with a sign of respiratory distress
Rule
Acute hypoxic respiratory failure v2026.11-1
Published source
Merck Manual Professional Version: Acute Hypoxemic Respiratory Failure (AHRF), including ARDS (2026), Definition/evaluation: PaO2 <60 mmHg, PaO2/FiO2 <300, or SpO2 <88%, with dyspnea and tachypnea · source (checked 2026-11-14)
Contested
Organizations use different oxygen-saturation cut-offs (SpO2 <88%, <=90% or <91% on room air). This rule uses <88% (the source above) and a LOCAL respiratory-rate cut-off of 28/min as one sign of respiratory distress.

Effect if the clinician agrees (illustrative)

Change
R09.02 -> J96.01
Secondary-diagnosis level
non-CC → MCC
MS-DRG (illustrative)
195 Simple pneumonia and pleurisy without CC/MCC → 193 Simple pneumonia and pleurisy with MCC
Relative weight
0.6285 → 1.3144 (+0.6859)
Codes before
J18.9, E66.812, N18.30, R09.02, I10, E11.9
Codes after
J18.9, E66.812, N18.30, I10, E11.9, J96.01

All open gaps on this encounter together: MS-DRG 195 → 193 (RW +0.6859).

CC/MCC status, CC exclusions (subset) and relative weights from the public CMS FY2026 IPPS final rule tables (5, 6I, 6J, 6K). This is not a grouper and not a payment estimate. Queries never mention any of this.

Severity documentation index change SIMULATED

1.0 points

SIMULATED: Illustrative severity weights (MCC = 1.0, CC = 0.5, non-CC = 0) summed over secondary diagnoses; not a validated risk-adjustment model and not a measured effect.

Evidence

Structured values are read by code from the cited rows. Note facts are shown only when the model's quote was found verbatim in the note.

Evidence (each item cited to a source row or a quoted span)
InputValueSource
Lowest SpO2 on room air (%) 82.0
SpO2 82% on room air · vital VIT-009919 · 2026-11-11 08:59
Lowest PaO2 on room air (mmHg) 52.0
PaO2 52 mmHg on room air · lab LAB-003455 · 2026-11-11 09:04
Lowest PaO2/FiO2 ratio
PaO2 / FiO2 (room air FiO2 0.21 when none recorded)
248
PaO2 52 mmHg · lab LAB-003455 · 2026-11-11 09:04
FiO2 21 · lab LAB-003456 · 2026-11-11 09:04
Highest respiratory rate (/min) 34.0
respiratory rate 34/min · vital VIT-009920 · 2026-11-11 08:59
Highest supplemental oxygen flow (L/min) 5.0
O2 5 L/min (nasal cannula) · vital VIT-009921 · 2026-11-11 09:09
Rule trace (inputs, thresholds, outcome)
Rule trace (rule respiratory_failure v2026.11-1; evaluated in order, first true outcome wins; "unknown" = missing input)
StepExpressionInputs and thresholds readResult
derived: measured present(spo2_min_ra) or present(pao2_min_ra) or present(pf_min) pao2_min_ra=52.0, pf_min=248, spo2_min_ra=82.0 true
derived: hypoxemia coalesce(spo2_min_ra < t.spo2_ra, false) or coalesce(pao2_min_ra < t.pao2, false) or coalesce(pf_min < t.pf, false) pao2_min_ra=52.0, pf_min=248, spo2_min_ra=82.0, t.pao2=60, t.pf=300, t.spo2_ra=88 true
derived: distress coalesce(rr_max >= t.rr_distress, false) or coalesce(wob_increased, false) or adv_resp_support adv_resp_support=False, rr_max=34.0, t.rr_distress=28, wob_increased=unknown true
outcome: chronic_baseline home_o2 and hypoxemia home_o2=False, hypoxemia=True false
outcome: met hypoxemia and distress distress=True, hypoxemia=True true

Documentation query

Title and question drafted by model clockworks-mock (audit entry #2168); clinical indicators and answer options assembled by code from the rule and the record.

Sign in to act. Sign in as a demo user (a CDI specialist sends queries).

DOCUMENTATION QUERY (draft)
Title: Clarification request: respiratory documentation
Encounter: ENC-00101   Patient: Celeste Marlow   To: Dr. Cyrus Ellingham

Clinical indicators from the health record:
- Documented in the record: "hypoxia" [Progress note DOC-000341]
- SpO2 82% on room air (2026-11-11 08:59) [vital VIT-009919]
- PaO2 52 mmHg on room air (2026-11-11 09:04) [lab LAB-003455]
- FiO2 21 (2026-11-11 09:04) [lab LAB-003456]
- respiratory rate 34/min (2026-11-11 08:59) [vital VIT-009920]
- O2 5 L/min (nasal cannula) (2026-11-11 09:09) [vital VIT-009921]

Question:
Based on your clinical judgement and the indicators above, can the respiratory diagnosis being evaluated and treated be further specified?

Response options (select one or write your own):
( ) Acute respiratory failure with hypoxia
( ) Hypoxemia without respiratory failure
( ) Other (please specify): ____________
( ) Unable to determine

Please respond based on your independent clinical judgement. Any response, including "unable to determine", is acceptable. This query and your response are kept as part of the health record.

Other findings on this encounter

History

Audit entries for this finding (newest first)
SeqWhen (UTC)ActorAction EntitiesDecision / reasonModel / hashes
2168 2026-11-14T20:57:25 system:llm
system
llm.call ENC-00101, ENC-00101.respiratory_failure — clockworks-mock mock-1/exactdx.draft_query@1
prompt f94cfa3b4fef
output 5de8fced5850
entry 7f13c765591c
1342 2026-11-14T19:24:30 system:llm
system
llm.call ENC-00101, ENC-00101.respiratory_failure — clockworks-mock mock-1/exactdx.draft_query@1
prompt f94cfa3b4fef
output 5de8fced5850
entry 41e09a7819db
600 2026-11-14T18:29:05 system:llm
system
llm.call ENC-00101, ENC-00101.respiratory_failure — clockworks-mock mock-1/exactdx.draft_query@1
prompt f94cfa3b4fef
output 5de8fced5850
entry 089d7273fd79