What documentation does 99222 require?

- MDM moderate complexity on at least two of three elements, OR 55 minutes total time on the date of admission. - Document the admit reason, problem list, working diagnosis, and the management plan including prescription drug therapy. - External data (records from referring provider, prior hospitalizations, ED notes) and independent interpretation of imaging count toward moderate data. - If using time, include all qualifying activities on the date of admission.

What are common 99222 billing pitfalls?

- Confusing 99222 with the deprecated outpatient observation code 99219. The 2023 unified rules folded observation into the inpatient code family. - Down-coding to 99221 when prescription drug management is clearly documented. Prescription management at admission almost always supports moderate risk. - Up-coding to 99223 without a high-risk element (intensive monitoring, decision regarding ICU, decision to de-escalate care).

How much does 99222 pay in 2026?

2026 work RVU for 99222 is 2.60. National Medicare non-facility allowable is approximately $128.59 at the 2026 conversion factor. Adjust for locality GPCI and your payer's contracted conversion factor for actual payment.

Hospital · CMS status A

99222

Initial hospital inpt/obs mod 55

Initial hospital inpatient or observation care, per day, moderate-level medical decision making or 55 minutes of total time on the date of the encounter. CMS 2026 wRVU 2.60. The most common initial-day code in adult hospital medicine.

Hospitalist Outpatient IM

Model in calculator →Audit a note

Work RVU

2.60

2026 Medicare pays

$128.59

National GPCI · non-facility · CF $33.4009

RVU anatomyWork 2.60 + Practice 1.05 + Malpractice 0.20 = 3.85 total

Work (your effort)Practice expenseMalpractice

When to use it

Use 99222 when the first-day admission encounter reflects moderate complexity: two or more chronic problems with progression or treatment changes, one undiagnosed new problem with uncertain prognosis, or prescription drug management. Real examples: admission for COPD exacerbation requiring IV steroids and bronchodilators, admission for CHF decompensation with diuresis, admission for cellulitis requiring IV antibiotics.

Full guidance

Prescription drug management satisfies moderate risk on its own, which makes 99222 the right initial-day code for the majority of medical admissions. Time-based alternative is 55 minutes on the date of admission.

Documentation checklist

✓MDM moderate complexity on at least two of three elements, OR 55 minutes total time on the date of admission.
✓Document the admit reason, problem list, working diagnosis, and the management plan including prescription drug therapy.
✓External data (records from referring provider, prior hospitalizations, ED notes) and independent interpretation of imaging count toward moderate data.
✓If using time, include all qualifying activities on the date of admission.

Common pitfalls

!Confusing 99222 with the deprecated outpatient observation code 99219. The 2023 unified rules folded observation into the inpatient code family.
!Down-coding to 99221 when prescription drug management is clearly documented. Prescription management at admission almost always supports moderate risk.
!Up-coding to 99223 without a high-risk element (intensive monitoring, decision regarding ICU, decision to de-escalate care).
!Missing the AI modifier when serving as the principal admitting physician with Medicare.

Common modifiers

AI25

Common ICD-10 pairings

J44.1I50.32L03.115K57.32N39.0

Payer notes

Medicare and Medicare Advantage plans pay 99222 at the standard PFS allowable. Commercial payers usually mirror Medicare's rate. Some payers audit 99222-to-99223 ratios at the practice level. The AI modifier is Medicare-specific.