2027 ICD-10-CM Diagnosis Code F10.99Alcohol use, unspecified with unspecified alcohol-induced disorder
ICD-10-CM Codes›F01–F99›F10-F19›F10
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
F10.99 is a billable ICD-10-CM diagnosis code for alcohol use, unspecified with unspecified alcohol-induced disorder. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 894 through 897. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 463 closely related codes. Coders also document this condition as alcohol consumption during pregnancy. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Alcohol-related disorders.
F10.99 no longer risk-adjusts for Medicare Advantage: it mapped to HCC 55 under the retired CMS-HCC V24 model through payment year 2025 but maps to no category in the live V28 model. It still risk-adjusts in the PACE (CMS-HCC V22) category 55, ESRD (V21) category 55, and ESRD (V24) category 55 for payment year 2027.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
F10.99 no longer risk-adjusts for Medicare Advantage: it maps to no payment category in the live CMS-HCC V28 model, although it still risk-adjusts in the other CMS models shown below.
Source: CMS Payment Year 2027 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Alcohol consumption during pregnancy
- Craving for alcohol
- Craving for food or drink
- Craving for particular drink
- Disorder caused by alcohol
- Light drinker
- Persistent effect of alcohol
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to F10.99: its own notes plus those printed at F10.9, F10, and Chapter 5. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- disorders of psychological development
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Use Additional Code
Add a second code, after this one, to fully describe the condition.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name F10.99, its category, or a range that includes it.
Applicable To 1
These notes mention F10.99.
Excludes1 2
These codes carry an Excludes1 note naming F10.99: they are not reported together with it, unless the two conditions are unrelated.
Excludes2 2
These codes carry an Excludes2 note naming F10.99: its condition is not part of those codes, and both may be reported when the patient has both.
- F44.0 Dissociative amnesiaalcohol-or other psychoactive substance-induced amnestic disorder (F10, F13, F19 with .26, .96) names F10, which includes this code
- T40 Poisoning by, adverse effect of and underdosing of narcotics and psychodysleptics [hallucinogens]drug dependence and related mental and behavioral disorders due to psychoactive substance use (F10.-F19.-) names F10, which includes this code
Code First 1
These codes say to code first a condition named in the note, and F10.99 is one of the conditions named.
Use Additional Code 38
These codes say to use an additional code from the note, and F10.99 is one of the codes named.
- C00 Malignant neoplasm of lipalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C01 Malignant neoplasm of base of tonguealcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C02 Malignant neoplasm of other and unspecified parts of tonguealcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C03 Malignant neoplasm of gumalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C04 Malignant neoplasm of floor of mouthalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C05 Malignant neoplasm of palatealcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C06 Malignant neoplasm of other and unspecified parts of mouthalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C07 Malignant neoplasm of parotid glandalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C08 Malignant neoplasm of other and unspecified major salivary glandsalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C09 Malignant neoplasm of tonsilalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C10 Malignant neoplasm of oropharynxalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C14 Malignant neoplasm of other and ill-defined sites in the lip, oral cavity and pharynxalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C15 Malignant neoplasm of esophagusalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C16 Malignant neoplasm of stomachalcohol abuse and dependence (F10.-) names F10.-, which includes this code
- C22 Malignant neoplasm of liver and intrahepatic bile ductsalcohol abuse and dependence (F10.-) names F10.-, which includes this code
23 more Use Additional Code notes name this code. Browse all Use Additional Code notes.
Code Also 2
These codes say F10.99 may also be needed to fully describe the condition. The note gives no sequencing direction.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Disorder (of) See Also: Disease;
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Alcohol-Related Disorders
disorders related to or resulting from abuse or misuse of alcohol.
Patient EducationClinical
Alcohol
Many Americans drink alcohol at least occasionally. The Dietary Guidelines for Americans say that adults of legal drinking age should either not drink or drink in moderation. Drinking less is better for your health than drinking more. Also, there are some people who should not drink at all.
The full article covers:
- How does alcohol affect the body?
- Why are the effects of alcohol different from person to person?
- What is moderate drinking?
- What is a standard drink?
- Who should not drink alcohol?
- What is excessive drinking?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert F10.99 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About F10.99Overview
What is the ICD-10 code for alcohol use, unspecified with unspecified alcohol-induced disorder?
The ICD-10-CM code for alcohol use, unspecified with unspecified alcohol-induced disorder is F10.99 (sometimes written as F1099). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is F10.99 (Alcohol use, unspecified) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report alcohol use, unspecified with unspecified alcohol-induced disorder on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does F10.99 group to?
When alcohol use, unspecified with unspecified alcohol-induced disorder is the principal diagnosis on an inpatient stay, it groups to MS-DRG 894, 897, 895, 896, with relative weights from 0.6272 to 1.6610 depending on complications. Higher weights mean higher Medicare reimbursement.
Is F10.99 a CC or MCC?
CMS lists F10.99 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 463 closely related codes in its exclusion list.
Can F10.99 be reported with a code from F10.1?
Not as a rule. The Excludes1 note at F10.9, which applies to F10.99, lists "alcohol abuse (F10.1-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
Does F10.99 risk-adjust for Medicare Advantage payment?
Not for Medicare Advantage. F10.99 mapped to HCC 55 in the retired CMS-HCC V24 model, which last determined payment in 2025, but it maps to no category in the live V28 model; see all codes that no longer risk-adjust. It still risk-adjusts in the PACE (CMS-HCC V22) category 55 (Drug/Alcohol Dependence), ESRD (V21) category 55 (Drug/Alcohol Dependence), and ESRD (V24) category 55 (Substance Use Disorder/Moderate/Severe/Substance Use with Complications).
