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ICD-9-CM diagnosis code (retired)

649.31 — Coagulation defects complicating pregnancy, childbirth, or the puerperium, delivered, with or without mention of antepartum condition

ICD-9-CM was replaced by ICD-10 on October 1, 2015. These are the ICD-10-CM equivalents from the CMS General Equivalence Mappings.

About ICD-9-CM 649.31

649.31 is an ICD-9-CM diagnosis code for coagulation defects complicating pregnancy, childbirth, or the puerperium, delivered, with or without mention of antepartum condition. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.

The CMS General Equivalence Mappings translate it to 4 ICD-10-CM codes, such as O99.111 (Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, first trimester), O99.112 (Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, second trimester) and O99.113 (Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, third trimester). All of these are approximate matches, so review the record to pick the right one.

ICD-10-CM equivalents

Common questions about 649.31

What is the ICD-10 code for ICD-9 649.31?

The GEMs map 649.31 to ICD-10-CM O99.111, O99.112, O99.113 and O99.12.

GEMs are a translation aid, not a substitute for coding from the record. The 2027 ICD-10 code set has changed since the last GEMs release in 2018. Page updated September 29, 2026.