Dīng Jǐn 丁錦, zì Lǚzhōng 履中, hào Dōngshān 東山, fl. Yōngzhèng–Qiánlóng era (c. 1720s–1740s), native of Dāntú 丹徒 (modern Zhènjiāng 鎮江, Jiāngsū). A Jiāngnán medical scholar of the early Qiánlóng generation, known principally for two Nànjīng commentaries: Gǔ běn Nànjīng chǎn zhù 古本難經闡註 (KR3ea055, self-preface 1729) and Nànjīng gǔ yì 難經古義 (KR3ea057). The two works represent complementary projects: one offers a phrase-by-phrase commentary on what Dīng presents as an older recension of the Nànjīng, the other systematizes the “ancient meaning” (古義) of the difficulties against the prevailing YuánMíng Huá Shòu KR3ea060 tradition. His textual orientation is moderately philological — he restores Sòng-quoted variants and resists the speculative mìngmén readings of the late-Míng Zhāng Jièbīn (KR3ea036) school.
CBDB carries no match for 丁錦 by name; lifedates are not securely recorded. Biographical sources: Chén Bāngxián 陳邦賢, Zhōngguó yī xué rén míng zhì 中國醫學人名志 (1955); Lǐ Jīngwěi 李經緯 (ed.), Zhōng yī rén wù cí diǎn 中醫人物詞典 (Shànghǎi cí shū, 1988); Hé Shìxī 何時希, Zhōngguó lì dài yī jiā chuán lǜ 中國歷代醫家傳錄 (Beijing: Rénmín wèishēng, 1991), vol. 2.