Journal profile · MEDICINE, GENERAL & INTERNAL
KOREAN JOURNAL OF INTERNAL MEDICINE
ISSN 1226-3303 · eISSN 2005-6648 · Korean Association of Internal Medicine/Daihan Naigwa Haghoi · SOUTH KOREA
KOREAN JOURNAL OF INTERNAL MEDICINE: CAS Zone 4 · Medicine (2025 upgraded edition); impact factor 2.17; fully open access; APC about USD 500; median 92 days to acceptance (73 articles, last 24 months); 98 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
KOREAN JOURNAL OF INTERNAL MEDICINE is published by Korean Association of Internal Medicine/Daihan Naigwa Haghoi and is in Zone 4 of Medicine in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Legal and Regulatory Analysis, Linguistic, Cultural, and Literary Studies and Military Technology and Strategies, together about 42% of its articles. (generated from OpenAlex topic counts and CAS ranking data)
The Korean Journal of Internal Medicine (Korean J Intern Med, KJIM) is an international medical journal published six times a year in English by the Korean Association of Internal Medicine. Abbreviated title is Korean J Intern Med. The Journal publishes peer-reviewed original articles, reviews, and editorials on all aspects of medicine, including clinical investigations and basic research. Both human and experimental animal studies are welcome, as are new findings on the epidemiology, pathogenesis, diagnosis, and treatment of diseases.
From the journal's Aims & Scope
Research area (LetPub): MEDICINE, GENERAL & INTERNAL
Editor-in-chief Jong-Il ChoiPublisher website
Editorial board by country: none in mainland China; most named South Korea 31 (31 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Legal and Regulatory AnalysisSocial Sciences14%
- Linguistic, Cultural, and Literary StudiesSocial Sciences14%
- Military Technology and StrategiesEngineering14%
- Liver Disease Diagnosis and TreatmentMedicine3.8%
- Helicobacter pylori-related gastroenterology studiesMedicine3.7%
- Gastrointestinal disorders and treatmentsMedicine3.1%
- Gastric Cancer Management and OutcomesMedicine3.1%
- Lymphoma Diagnosis and TreatmentMedicine2.9%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Medicine Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Medicine | Zone 4 |
| Minor | Medicine, General & Internal | Zone 3 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Medicine Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Medicine | Zone 3 |
| Minor | Medicine, General & Internal | Zone 3 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Medicine Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Medicine | Zone 4 |
| Minor | Medicine, General & Internal | Zone 3 |
Top journal: noReview journal: no
Database indexing
SCIEScopusDOAJLetPub
International journal early-warning lists: not listed in any editionLetPub
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 2.17LetPub ·
- Impact factor (publisher)
- 2.2Publisher website ·
- CiteScore 2026-06
- 4.8LetPub ·
- SJR 2026-06
- 0.78LetPub ·
- SNIP 2026-06
- 0.97LetPub ·
- h-index
- 35LetPub ·
- h-index
- 75OpenAlex ·
- i10-index
- 1,539OpenAlex ·
- 2-year mean citedness
- 2.33OpenAlex ·
- Self-citation rate
- 4.5%LetPub ·
- Share of gold OA articles
- 99.59%LetPub ·
Volume
- Articles per year
- 84LetPub ·
Articles by year OpenAlex count · 8,585 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 87 | 87 | 25 |
| 2025 | 98 | 98 | 199 |
| 2024 | 112 | 112 | 467 |
| 2023 | 116 | 116 | 637 |
| 2022 | 121 | 121 | 1,140 |
| 2021 | 111 | 111 | 1,302 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
Review time from article dates manuscript dates registered with Crossref · to
92 daysMedian, submission to acceptance · P25–P75 55 days – 124 days
- Acceptance to online
- median 133 days (73 articles)
- Submission to online
- median 233 days
- Sample
- 73 articles with submission and acceptance dates (229 in the window); the latest was accepted on
Only articles that were accepted and published are counted, not the time spent on rejected manuscripts, so this usually runs longer than a publisher's "time to first decision".
Other sources
- Average review time (community reports)
- about 20 weeksLetPub ·
- Submission to publication (journal-reported)
- about 20 weeksDOAJ ·
- Peer review
- Unspecified peer reviewDOAJ
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Fully open accessDOAJ
Every article is open access; authors usually pay an article processing charge (APC).
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| DOAJ | USD 500 | Yes | CC BY-NC | |
| OpenAlex | USD 500 | — | — | |
| Publisher website | USD 1,000 / USD 300 | — | — |
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
Article types accepted7, with length limits
- announcementsThe Korean Journal of Internal Medicine focuses on clinical and experimental studies, reviews, book reviews, editorials, and announcements.Length not stated
- book reviewsThe Korean Journal of Internal Medicine focuses on clinical and experimental studies, reviews, book reviews, editorials, and announcements.Length not stated
- clinical and experimental studiesThe Korean Journal of Internal Medicine focuses on clinical and experimental studies, reviews, book reviews, editorials, and announcements.Length not stated
- editorialtes in all fields of internal medicine. Editorials should not exceed 2,000 words, excluding references, tables, and figures. IMAGES OF INTERmain text ≤ 2,000 words
- editorialsThe Korean Journal of Internal Medicine focuses on clinical and experimental studies, reviews, book reviews, editorials, and announcements.Length not stated
- original articlesThe Journal publishes peer-reviewed original articles, reviews, and editorialsLength not stated
- reviewsThe Korean Journal of Internal Medicine focuses on clinical and experimental studies, reviews, book reviews, editorials, and announcements.Length not stated
Policy excerpts from the journal's websitePublication ethics, Peer review
- Publication ethics
Plagiarism screening with Crossref Similarity Check Model summary
Upon receipt, submitted manuscripts are screened for possible plagiarism or duplicate publication using Crossref Similarity Check.
Source ↗Publisher website ·- Peer review
Follows ICMJE Uniform Requirements (Vancouver style) Model summary
The Korean Journal of Internal Medicine follows the Uniform Requirements for Manuscripts Submitted to Biomedical Journals: Writing and Editing for Biomedical Publication [1] commonly known as the Vancouver style, if not otherwise described below.
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Korean Association of Internal Medicine/Daihan Naigwa Haghoi
- Country or region
- SOUTH KOREA
- Language
- English
- ISSN
- 1226-3303
- Electronic ISSN
- 2005-6648
- Latest issue on the website
- Volume 41 (September 2026)
- Official links
FAQ
Frequently asked questions about KOREAN JOURNAL OF INTERNAL MEDICINE
What CAS zone is KOREAN JOURNAL OF INTERNAL MEDICINE in?
In the 2025 upgraded edition of the CAS Journal Ranking, KOREAN JOURNAL OF INTERNAL MEDICINE is in Zone 4 of Medicine, and in Zone 3 of the minor category Medicine, General & Internal. In the 2026 Xinrui edition it is in Zone 3 of Medicine. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of KOREAN JOURNAL OF INTERNAL MEDICINE?
The latest impact factor listed by LetPub is 2.17; CiteScore 4.8, h-index 75.
How long does peer review take at KOREAN JOURNAL OF INTERNAL MEDICINE?
Based on the dates recorded on 73 articles published between October 2024 and October 2026 (the last 24 months), the median time from submission to acceptance is 92 days (interquartile range 55–124 days); authors report an average review time of about 20 weeks. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
Where are the editorial board members of KOREAN JOURNAL OF INTERNAL MEDICINE based?
Of the 31 board members whose country the journal's board page names, none are in mainland China; the countries named most often are South Korea (31). Counted from the institutions listed on the board page; for reference only.
Which databases index KOREAN JOURNAL OF INTERNAL MEDICINE?
According to LetPub and DOAJ records, KOREAN JOURNAL OF INTERNAL MEDICINE is indexed in SCIE, Scopus and DOAJ.
Is KOREAN JOURNAL OF INTERNAL MEDICINE open access, and what is the APC?
KOREAN JOURNAL OF INTERNAL MEDICINE is a fully open-access journal. APC about USD 500.
Sources and updates
The facts on this page come from LetPub, OpenAlex, DOAJ, Publisher website; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-26). Last updated: .