Summary & Overview
CPT 1121F: Subsequent Evaluation for Program Measure Documentation
CPT code 1121F is a supplemental tracking code that documents a subsequent evaluation for a condition relevant to a program measure. As a non-procedural reporting code, 1121F is used to indicate that follow-up assessment occurred and was documented, supporting quality measurement and program reporting. Nationally, such tracking codes are important for program compliance, quality reporting, and analytics that inform population health initiatives.
Key payers considered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an explanation of the code's clinical and administrative purpose, typical settings where it is recorded, and what its presence in claims or clinical records signifies for program measurement. The publication outlines common usage patterns, relevant billing context, and how 1121F interacts with quality reporting workflows. It also identifies missing input elements where specific payer edits, modifiers, taxonomies, or ICD-10 pairings are not provided.
This analysis is national in scope and focuses on how the code functions within program measurement and follow-up documentation rather than specific reimbursement details.
Billing Code Overview
CPT code 1121F indicates documentation shows subsequent evaluation for a condition relevant to the program measure being reported. This is a supplemental tracking code used to record that a follow-up evaluation occurred for a condition tied to a quality or program measure.
Service Type: Follow-up clinical evaluation / subsequent evaluation for program measure
Typical Site of Service: Outpatient clinic or other ambulatory care setting where program measures and subsequent evaluations are documented
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A primary care clinician documents a follow-up visit focused on management of a chronic condition that is part of a program measure (for example, diabetes, hypertension, or smoking cessation). The visit is not a procedural service but a performance-tracking encounter where the clinician confirms continued evaluation and management of the condition; documentation specifically notes the subsequent evaluation relevant to the program measure being reported. The workflow: patient arrives for an outpatient visit at a primary care or chronic disease management clinic, vital signs and relevant labs or patient-reported outcomes are reviewed, medication adherence and treatment goals are assessed, a focused examination or counseling is performed as needed, and the clinician records the subsequent evaluation that satisfies the program-specific measure. The clinician or billing staff appends the supplemental tracking code 1121F on the claim or in quality reporting files to indicate the subsequent evaluation was documented for the measure.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure or other service | Use when a separate E/M visit is performed the same day as another service and documentation supports a distinct, significant E/M. |
57 | Decision for surgery | Use if the visit included the decision for inpatient or outpatient surgery related to the chronic condition. |
59 | Distinct procedural service | Use when another procedural CPT on the same day is separate and distinct from the documented evaluation relevant to the program measure. |
76 | Repeat procedure or service by same physician | Use when the same service is repeated by the same clinician later the same day. |
77 | Repeat procedure by another physician | Use when a different physician repeats the same service the same day. |
24 | Unrelated E/M service by the same physician during a postoperative period | Use if the documented subsequent evaluation is unrelated to a recent procedure during global period. |
24 | Unrelated E/M service by the same physician during a postoperative period | Use if the documented subsequent evaluation is unrelated to a recent procedure during global period. |
91 | Repeat clinical diagnostic laboratory test | Use when a repeat lab was ordered and performed to support the subsequent evaluation for the measure. |
GA | Documentation on file - power of attorney or representative signature absent | Use when specific documentation requirements for reporting cannot be met but authorization is on file (payer-specific). |
QW | CLIA waived test performed | Use when a waived point-of-care test (e.g., fingerstick glucose) supports the evaluation reported for the program measure. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| 207Q00000X | Family Medicine | Primary care clinicians who commonly document subsequent evaluations for chronic disease measures. |
| 207R00000X | Internal Medicine | Internists managing longitudinal chronic conditions relevant to quality measures. |
| 208000000X | Pediatrics | Pediatricians documenting follow-up evaluations for pediatric chronic disease measures. |
| 261QP2000X | Nurse Practitioner | Advanced practice clinicians who perform and document subsequent evaluations for program reporting. |
| 363L00000X | Physician Assistant | Physician assistants who commonly provide follow-up evaluations and documentation for quality measures. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
E11.9 | Type 2 diabetes mellitus without complications | Frequently tracked in quality programs; subsequent evaluations document glycemic control and management. |
I10 | Essential (primary) hypertension | Common chronic condition included in program measures where subsequent evaluation is tracked. |
F17.210 | Nicotine dependence, cigarettes, uncomplicated | Relevant to smoking cessation program measures where follow-up evaluation is documented. |
E78.5 | Hyperlipidemia, unspecified | Lipid management is commonly included in quality measures; follow-up evaluations document therapy and control. |
N18.3 | Chronic kidney disease, stage 3 (moderate) | Kidney disease monitoring is part of many program measures; subsequent evaluations document labs and management. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
99213 | Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutes | Common E/M code used for the visit during which the subsequent evaluation is documented and 1121F is reported as supplemental tracking. |
99214 | Office or other outpatient visit for the evaluation and management of an established patient, typically 25 minutes | Used when a more complex follow-up visit documents the subsequent evaluation for the program measure. |
83036 | Hemoglobin; glycosylated (A1c) | Laboratory test commonly performed or reviewed at a follow-up visit for diabetes measures; supports documentation for 1121F. |
81003 | Urinalysis, non-automated, without microscopy | Point-of-care test that may be performed or reviewed during the follow-up evaluation for relevant measures (e.g., renal monitoring). |
99406 | Smoking and tobacco use cessation counseling, intermediate, greater than 3 minutes up to 10 minutes | Counseling codes that may accompany the documented subsequent evaluation for measures related to tobacco cessation. |