ICD-10-CM · Chapter 15 · O00-O9A
O99 Other maternal diseases classifiable elsewhere but complicating pregnancy, childbirth and the puerperium
Includes
- conditions which complicate the pregnant state, are aggravated by the pregnancy or are a main reason for obstetric care
Excludes 2 (not included here)
- when the reason for maternal care is that the condition is known or suspected to have affected the fetus (O35-O36)
Use Additional Code
- code to identify specific condition
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| O99..0 | Anemia complicating pregnancy, childbirth and the puerperium | No |
| O99..01 | Anemia complicating pregnancy | No |
| O99..011 | Anemia complicating pregnancy, first trimester | Yes |
| O99..012 | Anemia complicating pregnancy, second trimester | Yes |
| O99..013 | Anemia complicating pregnancy, third trimester | Yes |
| O99..019 | Anemia complicating pregnancy, unspecified trimester | Yes |
| O99..02 | Anemia complicating childbirth | Yes |
| O99..03 | Anemia complicating the puerperium | Yes |
| O99..1 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, childbirth and the puerperium | No |
| O99..11 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy | No |
| O99..111 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, first trimester | Yes |
| O99..112 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, second trimester | Yes |
| O99..113 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, third trimester | Yes |
| O99..119 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating pregnancy, unspecified trimester | Yes |
| O99..12 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating childbirth | Yes |
| O99..13 | Other diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism complicating the puerperium | Yes |
| O99..2 | Endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium | No |
| O99..21 | Obesity complicating pregnancy, childbirth, and the puerperium | No |
| O99..210 | Obesity complicating pregnancy, unspecified trimester | Yes |
| O99..211 | Obesity complicating pregnancy, first trimester | Yes |
| O99..212 | Obesity complicating pregnancy, second trimester | Yes |
| O99..213 | Obesity complicating pregnancy, third trimester | Yes |
| O99..214 | Obesity complicating childbirth | Yes |
| O99..215 | Obesity complicating the puerperium | Yes |
| O99..28 | Other endocrine, nutritional and metabolic diseases complicating pregnancy, childbirth and the puerperium | No |
| O99..280 | Endocrine, nutritional and metabolic diseases complicating pregnancy, unspecified trimester | Yes |
| O99..281 | Endocrine, nutritional and metabolic diseases complicating pregnancy, first trimester | Yes |
| O99..282 | Endocrine, nutritional and metabolic diseases complicating pregnancy, second trimester | Yes |
| O99..283 | Endocrine, nutritional and metabolic diseases complicating pregnancy, third trimester | Yes |
| O99..284 | Endocrine, nutritional and metabolic diseases complicating childbirth | Yes |
| O99..285 | Endocrine, nutritional and metabolic diseases complicating the puerperium | Yes |
| O99..3 | Mental disorders and diseases of the nervous system complicating pregnancy, childbirth and the puerperium | No |
| O99..31 | Alcohol use complicating pregnancy, childbirth, and the puerperium | No |
| O99..310 | Alcohol use complicating pregnancy, unspecified trimester | Yes |
| O99..311 | Alcohol use complicating pregnancy, first trimester | Yes |
| O99..312 | Alcohol use complicating pregnancy, second trimester | Yes |
| O99..313 | Alcohol use complicating pregnancy, third trimester | Yes |
| O99..314 | Alcohol use complicating childbirth | Yes |
| O99..315 | Alcohol use complicating the puerperium | Yes |
| O99..32 | Drug use complicating pregnancy, childbirth, and the puerperium | No |
| O99..320 | Drug use complicating pregnancy, unspecified trimester | Yes |
| O99..321 | Drug use complicating pregnancy, first trimester | Yes |
| O99..322 | Drug use complicating pregnancy, second trimester | Yes |
| O99..323 | Drug use complicating pregnancy, third trimester | Yes |
| O99..324 | Drug use complicating childbirth | Yes |
| O99..325 | Drug use complicating the puerperium | Yes |
| O99..33 | Tobacco use disorder complicating pregnancy, childbirth, and the puerperium | No |
| O99..330 | Smoking (tobacco) complicating pregnancy, unspecified trimester | Yes |
| O99..331 | Smoking (tobacco) complicating pregnancy, first trimester | Yes |
| O99..332 | Smoking (tobacco) complicating pregnancy, second trimester | Yes |
| O99..333 | Smoking (tobacco) complicating pregnancy, third trimester | Yes |
| O99..334 | Smoking (tobacco) complicating childbirth | Yes |
| O99..335 | Smoking (tobacco) complicating the puerperium | Yes |
| O99..34 | Other mental disorders complicating pregnancy, childbirth, and the puerperium | No |
| O99..340 | Other mental disorders complicating pregnancy, unspecified trimester | Yes |
| O99..341 | Other mental disorders complicating pregnancy, first trimester | Yes |
| O99..342 | Other mental disorders complicating pregnancy, second trimester | Yes |
| O99..343 | Other mental disorders complicating pregnancy, third trimester | Yes |
| O99..344 | Other mental disorders complicating childbirth | Yes |
| O99..345 | Other mental disorders complicating the puerperium | Yes |
| O99..35 | Diseases of the nervous system complicating pregnancy, childbirth, and the puerperium | No |
| O99..350 | Diseases of the nervous system complicating pregnancy, unspecified trimester | Yes |
| O99..351 | Diseases of the nervous system complicating pregnancy, first trimester | Yes |
| O99..352 | Diseases of the nervous system complicating pregnancy, second trimester | Yes |
| O99..353 | Diseases of the nervous system complicating pregnancy, third trimester | Yes |
| O99..354 | Diseases of the nervous system complicating childbirth | Yes |
| O99..355 | Diseases of the nervous system complicating the puerperium | Yes |
| O99..4 | Diseases of the circulatory system complicating pregnancy, childbirth and the puerperium | No |
| O99..41 | Diseases of the circulatory system complicating pregnancy | No |
| O99..411 | Diseases of the circulatory system complicating pregnancy, first trimester | Yes |
| O99..412 | Diseases of the circulatory system complicating pregnancy, second trimester | Yes |
| O99..413 | Diseases of the circulatory system complicating pregnancy, third trimester | Yes |
| O99..419 | Diseases of the circulatory system complicating pregnancy, unspecified trimester | Yes |
| O99..42 | Diseases of the circulatory system complicating childbirth | Yes |
| O99..43 | Diseases of the circulatory system complicating the puerperium | Yes |
| O99..5 | Diseases of the respiratory system complicating pregnancy, childbirth and the puerperium | No |
| O99..51 | Diseases of the respiratory system complicating pregnancy | No |
| O99..511 | Diseases of the respiratory system complicating pregnancy, first trimester | Yes |
| O99..512 | Diseases of the respiratory system complicating pregnancy, second trimester | Yes |
| O99..513 | Diseases of the respiratory system complicating pregnancy, third trimester | Yes |
| O99..519 | Diseases of the respiratory system complicating pregnancy, unspecified trimester | Yes |
| O99..52 | Diseases of the respiratory system complicating childbirth | Yes |
| O99..53 | Diseases of the respiratory system complicating the puerperium | Yes |
| O99..6 | Diseases of the digestive system complicating pregnancy, childbirth and the puerperium | No |
| O99..61 | Diseases of the digestive system complicating pregnancy | No |
| O99..611 | Diseases of the digestive system complicating pregnancy, first trimester | Yes |
| O99..612 | Diseases of the digestive system complicating pregnancy, second trimester | Yes |
| O99..613 | Diseases of the digestive system complicating pregnancy, third trimester | Yes |
| O99..619 | Diseases of the digestive system complicating pregnancy, unspecified trimester | Yes |
| O99..62 | Diseases of the digestive system complicating childbirth | Yes |
| O99..63 | Diseases of the digestive system complicating the puerperium | Yes |
| O99..7 | Diseases of the skin and subcutaneous tissue complicating pregnancy, childbirth and the puerperium | No |
| O99..71 | Diseases of the skin and subcutaneous tissue complicating pregnancy | No |
| O99..711 | Diseases of the skin and subcutaneous tissue complicating pregnancy, first trimester | Yes |
| O99..712 | Diseases of the skin and subcutaneous tissue complicating pregnancy, second trimester | Yes |
| O99..713 | Diseases of the skin and subcutaneous tissue complicating pregnancy, third trimester | Yes |
| O99..719 | Diseases of the skin and subcutaneous tissue complicating pregnancy, unspecified trimester | Yes |
| O99..72 | Diseases of the skin and subcutaneous tissue complicating childbirth | Yes |
| O99..73 | Diseases of the skin and subcutaneous tissue complicating the puerperium | Yes |
| O99..8 | Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium | No |
| O99..81 | Abnormal glucose complicating pregnancy, childbirth and the puerperium | No |
| O99..810 | Abnormal glucose complicating pregnancy | Yes |
| O99..814 | Abnormal glucose complicating childbirth | Yes |
| O99..815 | Abnormal glucose complicating the puerperium | Yes |
| O99..82 | Streptococcus B carrier state complicating pregnancy, childbirth and the puerperium | No |
| O99..820 | Streptococcus B carrier state complicating pregnancy | Yes |
| O99..824 | Streptococcus B carrier state complicating childbirth | Yes |
| O99..825 | Streptococcus B carrier state complicating the puerperium | Yes |
| O99..83 | Other infection carrier state complicating pregnancy, childbirth and the puerperium | No |
| O99..830 | Other infection carrier state complicating pregnancy | Yes |
| O99..834 | Other infection carrier state complicating childbirth | Yes |
| O99..835 | Other infection carrier state complicating the puerperium | Yes |
| O99..84 | Bariatric surgery status complicating pregnancy, childbirth and the puerperium | No |
| O99..840 | Bariatric surgery status complicating pregnancy, unspecified trimester | Yes |
| O99..841 | Bariatric surgery status complicating pregnancy, first trimester | Yes |
| O99..842 | Bariatric surgery status complicating pregnancy, second trimester | Yes |
| O99..843 | Bariatric surgery status complicating pregnancy, third trimester | Yes |
| O99..844 | Bariatric surgery status complicating childbirth | Yes |
| O99..845 | Bariatric surgery status complicating the puerperium | Yes |
| O99..89 | Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium | No |
| O99..891 | Other specified diseases and conditions complicating pregnancy | Yes |
| O99..892 | Other specified diseases and conditions complicating childbirth | Yes |
| O99..893 | Other specified diseases and conditions complicating puerperium | Yes |
Last reviewed: September 2026