F72
BillableSevere intellectual disabilities
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is F72 an HCC code?
No. F72 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
HCC Category Mapping
RAF weights shown are the community, non-dual, aged base weights from the CMS risk adjustment model file. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
MEAT Criteria for F72
For F72to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically — it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed F72 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
F72 is the ICD-10-CM diagnosis code for severe intellectual disabilities. A developmental condition where a person has severe intellectual disability, meaning they have significantly below-average intellectual functioning and require substantial support for daily living activities. F72 sits in the ICD-10-CM chapter for mental, behavioral and neurodevelopmental disorders (f01-f99), within the section covering intellectual disabilities (f70-f79).
F72 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
F72 does not map to any HCC in V28 or V24 models. RxHCC maps to RxHCC 146 (0.000 weight). No direct RAF score impact. Clinical coding remains essential for care coordination and resource allocation for these high-need patients. Coders reviewing F72 should check whether additional documentation would support a more specific child code in the same hierarchy that does map to a payment HCC — capturing the correct specificity is the highest-leverage RAF improvement available within accurate coding.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for F72 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Document IQ scores and adaptive functioning assessments that support severe level classification
- •Note the extent of support needed for self-care, communication, and safety
Clinical Significance
Severe intellectual disability represents an IQ range of approximately 20-34 with very limited language and communication abilities. These individuals require extensive daily support for all self-care activities and are unable to live independently. They have high rates of comorbid conditions including epilepsy, motor impairments, and behavioral disorders. Healthcare encounters are complex and require specialized communication approaches.
Documentation Requirements
- ✓Provider documentation of intellectual disability with specification of severity as severe
- ✓Formal cognitive testing (IQ approximately 20-34) or clinical assessment supporting severe severity
- ✓Documentation of extensive adaptive functioning deficits requiring constant supervision
- ✓Assessment of communication modality and capacity for healthcare participation
- ✓Documentation of caregiving arrangements, guardianship status, and multidisciplinary support team
Commonly Confused Codes
- •F71 — Moderate intellectual disabilities; moderate ID (IQ 35-49) allows for some independent self-care, unlike severe
- •F73 — Profound intellectual disabilities; profound ID (IQ below 20) represents even more limited functioning than severe
- •F79 — Unspecified intellectual disabilities; always use the specified severity code when documented
- •G80.x — Cerebral palsy; motor impairments in cerebral palsy are separate from intellectual disability even when co-occurring