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 Yuán-Míng 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.